212022212112 has 60 divisors (see below), whose sum is σ = 605992583040. Its totient is φ = 69170364864.

The previous prime is 212022212057. The next prime is 212022212113. The reversal of 212022212112 is 211212220212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212022212113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15656812 + ... + 15670347.

It is an arithmetic number, because the mean of its divisors is an integer number (10099876384).

Almost surely, 2^212022212112 is an apocalyptic number.

It is an amenable number.

212022212112 is an abundant number, since it is smaller than the sum of its proper divisors (393970370928).

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

212022212112 is a wasteful number, since it uses less digits than its factorization.

212022212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31327220 (or 31327211 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212022212112 its reverse (211212220212), we get a palindrome (423234432324).

The spelling of 212022212112 in words is "two hundred twelve billion, twenty-two million, two hundred twelve thousand, one hundred twelve".