12

12 (twelve) is a positive integer following 11 and preceding 13. Its ordinal form is written "12th" or "twelfth".
== Properties ==
*12 is an , and the 3rd Superior Highly Composite number (SHCN).
*12 is the number for the French department of .
*12 is the smallest number with six divisors.
*12 is the first .
*12 is the second .
*12 is a .
*A set of 12 objects is often called a dozen. That type of set gets its own name because many things are grouped in twelve: for example, twelve months in a year, twelve inches in a foot, twelve eggs in a typical container, etc.
*There are 12 size-3 Latin squares.
== In googology ==
*In Greek-based number-naming systems, 12 is associated with prefix "dodeka-", and with prefix "duodeci-" in Latin systems.
*In the Czech and Slovak languages, 12 is called tucet.
*Aarex Tiaokhiao coined the name duodecimal-uoonol for this number.Part 1 (LAN) - Aarex Googology (archived 2017-02-25)
* DeepLineMadom calls the number zeroogolplex, and is equal to 10[0]10[0]100 in DeepLineMadom's Array NotationDeepLineMadom's googology - Numbers I've coined (Retrieved 4 May 2022).
== See also ==
*Twelfty
*gross
*great gross
== Sources ==
Category: Abundant numbers
Category:Numbers
Category:Class 1
Category:Non-powers
Category:Numbers 0-99
Category:Numbers with 1 to 2 digits
Category:Powers of 12
Category:Superior highly composite numbers
zh:十二