212650045172 has 12 divisors (see below), whose sum is σ = 373151580480. Its totient is φ = 106035307896.

The previous prime is 212650045163. The next prime is 212650045193. The reversal of 212650045172 is 271540056212.

It is a congruent number.

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, 72427022 + ... + 72429957.

It is an arithmetic number, because the mean of its divisors is an integer number (31095965040).

Almost surely, 2^212650045172 is an apocalyptic number.

It is an amenable number.

212650045172 is a deficient number, since it is larger than the sum of its proper divisors (160501535308).

212650045172 is a wasteful number, since it uses less digits than its factorization.

212650045172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144857350 (or 144857348 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 212650045172 in words is "two hundred twelve billion, six hundred fifty million, forty-five thousand, one hundred seventy-two".