212721567922564 has 12 divisors (see below), whose sum is σ = 372263082753744. Its totient is φ = 106360687135784.

The previous prime is 212721567922559. The next prime is 212721567922573. The reversal of 212721567922564 is 465229765127212.

212721567922564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 19145662 + ... + 28142485.

It is an arithmetic number, because the mean of its divisors is an integer number (31021923562812).

Almost surely, 2^{212721567922564} is an apocalyptic number.

It is an amenable number.

212721567922564 is a deficient number, since it is larger than the sum of its proper divisors (159541514831180).

212721567922564 is a wasteful number, since it uses less digits than its factorization.

212721567922564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48412754 (or 48412752 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 61.

The spelling of 212721567922564 in words is "two hundred twelve trillion, seven hundred twenty-one billion, five hundred sixty-seven million, nine hundred twenty-two thousand, five hundred sixty-four".