221572940707552 has 48 divisors (see below), whose sum is σ = 507945515045472. Its totient is φ = 93168136788480.

The previous prime is 221572940707519. The next prime is 221572940707553. The reversal of 221572940707552 is 255707049275122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221572940707553) 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, 9331732599 + ... + 9331756342.

It is an arithmetic number, because the mean of its divisors is an integer number (10582198230114).

Almost surely, 2^{221572940707552} is an apocalyptic number.

It is an amenable number.

221572940707552 is an abundant number, since it is smaller than the sum of its proper divisors (286372574337920).

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

221572940707552 is a wasteful number, since it uses less digits than its factorization.

221572940707552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18663489011 (or 18663489003 counting only the distinct ones).

The product of its (nonzero) digits is 24696000, while the sum is 58.

The spelling of 221572940707552 in words is "two hundred twenty-one trillion, five hundred seventy-two billion, nine hundred forty million, seven hundred seven thousand, five hundred fifty-two".