221412500517052 has 24 divisors (see below), whose sum is σ = 428555172522176. Its totient is φ = 99428482559808.

The previous prime is 221412500517017. The next prime is 221412500517053. The reversal of 221412500517052 is 250715005214122.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221412500517053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57539629188 + ... + 57539633035.

Almost surely, 2^{221412500517052} is an apocalyptic number.

It is an amenable number.

221412500517052 is a deficient number, since it is larger than the sum of its proper divisors (207142672005124).

221412500517052 is a wasteful number, since it uses less digits than its factorization.

221412500517052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115079262277 (or 115079262275 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 37.

The spelling of 221412500517052 in words is "two hundred twenty-one trillion, four hundred twelve billion, five hundred million, five hundred seventeen thousand, fifty-two".