2212

2212 is the natural number that comes after 2211 and before 2213. It is even and composite, with prime factorization 2^2 × 7 × 79. Its divisors include 1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, and 2212. The sum of its digits is 7, and the number is divisible by 7 (2212 ÷ 7 = 316), making it a Harshad (Niven) number in base 10. In binary its representation is 100010100100, and in hexadecimal it is 0x8A4. In Roman numerals it is MMCCXII.

As a year, 2212 AD would be a leap year under the Gregorian calendar, so February would have 29 days.

In mathematical terms, Euler's totient function φ(2212) equals 936, indicating that 936 numbers up to 2212 are relatively prime to 2212.

There is no widely recorded historical event associated with the year 2212 in existing historical sources, as it lies in the future relative to the present era. In fiction and speculative works, years around the 22nd century are sometimes used to explore future technologies, governance, and social change, but such usages are varied and not tied to any singular canonical source.