212122211012 has 12 divisors (see below), whose sum is σ = 372015630336. Its totient is φ = 105832030920.

The previous prime is 212122211009. The next prime is 212122211027. The reversal of 212122211012 is 210112221212.

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, 57266564 + ... + 57270267.

It is an arithmetic number, because the mean of its divisors is an integer number (31001302528).

Almost surely, 2^212122211012 is an apocalyptic number.

It is an amenable number.

212122211012 is a deficient number, since it is larger than the sum of its proper divisors (159893419324).

212122211012 is a wasteful number, since it uses less digits than its factorization.

212122211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114537298 (or 114537296 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212122211012 its reverse (210112221212), we get a palindrome (422234432224).

The spelling of 212122211012 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred eleven thousand, twelve".