1

**12 is the natural number following 11 and preceding 13. **

In mathematics, the natural numbers are those used for counting and ordering.

2

**The product of the first three factorials, twelve is a superior highly composite number, divisible by 2, 3, 4, and 6.
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In mathematics, a superior highly composite number is a natural number which has more divisors than any other number scaled relative to some positive power of the number itself.

A highly composite number, also known as an anti-prime, is a positive integer with more divisors than any smaller positive integer has.

A composite number is a positive integer that can be formed by multiplying two smaller positive integers.

3

**It is approximately the number of full lunations of the moon in a year, and the number of years for a full cycle of Jupiter, which was historically considered the brightest "wandering star". **

In astronomy, the new moon is the first lunar phase, when the Moon and Sun have the same ecliptic longitude.

A year is the orbital period of the Earth moving in its orbit around the Sun.

4

**It is central to many systems of timekeeping, including the Western calendar and units of time of day, and frequently appears in the worldâ€™s major religions.**