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22 (twenty-two) is the natural number following 21 and preceding 23.

← 21 22 23 →
Cardinaltwenty-two
Ordinal22nd
(twenty-second)
Factorization2 × 11
Divisors1, 2, 11, 22
Greek numeralΚΒ´
Roman numeralXXII
Binary101102
Ternary2113
Quaternary1124
Quinary425
Senary346
Octal268
Duodecimal1A12
Hexadecimal1616
Vigesimal1220
Base 36M36

Contents

In mathematicsEdit

In physics and chemistryEdit

In aircraftEdit

  • 22 is the designation of the USAF stealth fighter, the F-22 Raptor.

In art, entertainment, and mediaEdit

In musicEdit

  • "Twenty Two" is a 1997 song by the punk band Millencolin
  • In Jay-Z's song "22 Two's", he rhymes the words: too, to, and two, 22 times in the first verse.
  • "22 Acacia Avenue" is a song by Iron Maiden on the album The Number of the Beast
  • Catch 22 is an album by death metal band Hypocrisy
  • "22" is a song by Lily Allen on the album It's Not Me, It's You.
  • 22 Dreams is a song and album by Paul Weller. The album contains 22 songs on it.
  • The Norwegian electronica project Ugress uses 22 as a recurring theme. All four albums feature a track with 22 in the title.
  • "22" is a song by Taylor Swift on her fourth album Red
  • "The Number 22" is a song by Ashbury Heights on the album The Looking Glass Society.
  • 22, A Million is an album by Bon Iver. The first track of the album is called "22 (OVER SOON)".
  • Cubic 22 was a Belgian techno duo.
  • "22" is a song by the English alternative rock band Deaf Havana on their album Old Souls
  • "22" is a song by the Irish singer Sarah McTernan. She will represent Ireland with this song in Eurovision 2019.

In other fieldsEdit

  • Catch-22 (1961), Joseph Heller's novel, and its 1970 film adaptation gave rise to the expression of logic "catch-22".
  • Revista 22 is a magazine published in Romania.
  • There are 22 stars in the Paramount Pictures logo.
  • "Twenty Two" (February 10, 1961) is Season 2–episode 17 (February 10, 1961) of the 1959-64 TV series The Twilight Zone, in which a hospitalized dancer has nightmares about a sinister nurse inviting her to Room 22, the hospital morgue.
  • Traditional Tarot decks have 22 cards with allegorical subjects. These serve as trump cards in the game. The Fool is usually a kind of wild-card among the trumps and unnumbered, so the highest trump is numbered 21. Occult Tarot decks usually have 22 similar cards which are called Major Arcana by fortune-tellers. Occultists have related this number to the 22 letters of the Hebrew alphabet and the 22 paths in the Kabbalistic Tree of Life.

In computing and technologyEdit

In religionEdit

In sportsEdit

  • In soccer there are 22 players that start a game and the maximum number of players playing at any time.
  • In Australian rules football, each team is allowed a squad of 22 players (18 on the field and 4 interchanges).
  • The length of a cricket pitch is 22 yards.
  • In rugby union, the "22" is a line in each half of the field which is 22 meters from the respective try line. It has significance in a number of laws particularly relating to kicking the ball away.
  • A snooker game (called a "frame") starts with 22 coloured balls at specified locations on the table (15 red balls and 7 others).

In weights and measuresEdit

In other usesEdit

Twenty-two may also refer to:

See alsoEdit

ReferencesEdit

  1. ^ Sloane, N. J. A. (ed.). "Sequence A000326 (Pentagonal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  2. ^ Sloane, N. J. A. (ed.). "Sequence A069099 (Centered heptagonal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  3. ^ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1986): 31
  4. ^ Sloane, N. J. A. (ed.). "Sequence A000124 (Central polygonal numbers (the Lazy Caterer's sequence))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  5. ^ Sloane, N. J. A. (ed.). "Sequence A002088 (Sum of totient function)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  6. ^ Sloane, N. J. A. (ed.). "Sequence A001608 (Perrin sequence)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  7. ^ Sloane, N. J. A. (ed.). "Sequence A059756 (Erdős-Woods numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  8. ^ Sloane, N. J. A. (ed.). "Sequence A006753 (Smith numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-31.
  9. ^ Martin, Oscar (2006). "Look-and-Say Biochemistry: Exponential RNA and Multistranded DNA" (PDF). American Mathematical Monthly. Mathematical association of America. 113 (4): 289–307. doi:10.2307/27641915. ISSN 0002-9890. Archived from the original (PDF) on 2006-12-24. Retrieved 2018-11-21.

External linksEdit