212222650172664 has 32 divisors (see below), whose sum is σ = 530557068655440. Its totient is φ = 70740824294400.

The previous prime is 212222650172593. The next prime is 212222650172759. The reversal of 212222650172664 is 466271056222212.

212222650172664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33123624 + ... + 39007944.

Almost surely, 2^{212222650172664} is an apocalyptic number.

212222650172664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212222650172664 is an abundant number, since it is smaller than the sum of its proper divisors (318334418482776).

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

212222650172664 is a wasteful number, since it uses less digits than its factorization.

212222650172664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7387071 (or 7387067 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 212222650172664 in words is "two hundred twelve trillion, two hundred twenty-two billion, six hundred fifty million, one hundred seventy-two thousand, six hundred sixty-four".