221422660233564 has 48 divisors (see below), whose sum is σ = 540025175999232. Its totient is φ = 70479476128512.

The previous prime is 221422660233563. The next prime is 221422660233589. The reversal of 221422660233564 is 465332066224122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422660233563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676274794 + ... + 676602129.

It is an arithmetic number, because the mean of its divisors is an integer number (11250524499984).

Almost surely, 2^{221422660233564} is an apocalyptic number.

It is an amenable number.

221422660233564 is an abundant number, since it is smaller than the sum of its proper divisors (318602515765668).

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

221422660233564 is a wasteful number, since it uses less digits than its factorization.

221422660233564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352877546 (or 1352877544 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 221422660233564 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, six hundred sixty million, two hundred thirty-three thousand, five hundred sixty-four".