21250246122252 has 48 divisors (see below), whose sum is σ = 62963692216320. Its totient is φ = 6071498891856.

The previous prime is 21250246122247. The next prime is 21250246122299. The reversal of 21250246122252 is 25222164205212.

21250246122252 is a `hidden beast` number, since 2 + 1 + 2 + 502 + 4 + 6 + 122 + 25 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14054394828 + ... + 14054396339.

It is an arithmetic number, because the mean of its divisors is an integer number (1311743587840).

Almost surely, 2^{21250246122252} is an apocalyptic number.

It is an amenable number.

21250246122252 is an abundant number, since it is smaller than the sum of its proper divisors (41713446094068).

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

21250246122252 is a wasteful number, since it uses less digits than its factorization.

21250246122252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28108791187 (or 28108791179 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 21250246122252 in words is "twenty-one trillion, two hundred fifty billion, two hundred forty-six million, one hundred twenty-two thousand, two hundred fifty-two".