212012120211112 has 48 divisors (see below), whose sum is σ = 434476533212640. Its totient is φ = 96937245407808.

The previous prime is 212012120211077. The next prime is 212012120211149. The reversal of 212012120211112 is 211112021210212.

It is a happy number.

It is a super-2 number, since 2×212012120211112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212012120211112.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732629628 + ... + 732918955.

It is an arithmetic number, because the mean of its divisors is an integer number (9051594441930).

Almost surely, 2^{212012120211112} is an apocalyptic number.

It is an amenable number.

212012120211112 is an abundant number, since it is smaller than the sum of its proper divisors (222464413001528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212012120211112 is a wasteful number, since it uses less digits than its factorization.

212012120211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465548722 (or 1465548705 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212012120211112 its reverse (211112021210212), we get a palindrome (423124141421324).

The spelling of 212012120211112 in words is "two hundred twelve trillion, twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred twelve".