212207562564 has 72 divisors (see below), whose sum is σ = 512589428064. Its totient is φ = 68326876800.

The previous prime is 212207562563. The next prime is 212207562599. The reversal of 212207562564 is 465265702212.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (212207562563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6291184 + ... + 6324824.

It is an arithmetic number, because the mean of its divisors is an integer number (7119297612).

Almost surely, 2^212207562564 is an apocalyptic number.

It is an amenable number.

212207562564 is an abundant number, since it is smaller than the sum of its proper divisors (300381865500).

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

212207562564 is a wasteful number, since it uses less digits than its factorization.

212207562564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34257 (or 34224 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 212207562564 in words is "two hundred twelve billion, two hundred seven million, five hundred sixty-two thousand, five hundred sixty-four".