252021253403212 has 12 divisors (see below), whose sum is σ = 441037306361680. Its totient is φ = 126010594442736.

The previous prime is 252021253403207. The next prime is 252021253403221. The reversal of 252021253403212 is 212304352120252.

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, 21808114 + ... + 31299142.

Almost surely, 2^{252021253403212} is an apocalyptic number.

It is an amenable number.

252021253403212 is a deficient number, since it is larger than the sum of its proper divisors (189016052958468).

252021253403212 is a wasteful number, since it uses less digits than its factorization.

252021253403212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16129440 (or 16129438 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 252021253403212 in words is "two hundred fifty-two trillion, twenty-one billion, two hundred fifty-three million, four hundred three thousand, two hundred twelve".