211211021200012 has 12 divisors (see below), whose sum is σ = 369756233872200. Its totient is φ = 105566382950816.

The previous prime is 211211021200007. The next prime is 211211021200063. The reversal of 211211021200012 is 210002120112112.

It is a super-2 number, since 2×211211021200012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9781900153 + ... + 9781921744.

It is an arithmetic number, because the mean of its divisors is an integer number (30813019489350).

Almost surely, 2^{211211021200012} is an apocalyptic number.

It is an amenable number.

211211021200012 is a deficient number, since it is larger than the sum of its proper divisors (158545212672188).

211211021200012 is a wasteful number, since it uses less digits than its factorization.

211211021200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19563824600 (or 19563824598 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211211021200012 its reverse (210002120112112), we get a palindrome (421213141312124).

The spelling of 211211021200012 in words is "two hundred eleven trillion, two hundred eleven billion, twenty-one million, two hundred thousand, twelve".