221422713332464 has 30 divisors (see below), whose sum is σ = 499048385790624. Its totient is φ = 94895448570720.

The previous prime is 221422713332459. The next prime is 221422713332489. The reversal of 221422713332464 is 464233317224122.

221422713332464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221422713332464² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141213464352 + ... + 141213465919.

Almost surely, 2^{221422713332464} is an apocalyptic number.

It is an amenable number.

221422713332464 is an abundant number, since it is smaller than the sum of its proper divisors (277625672458160).

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

221422713332464 is a wasteful number, since it uses less digits than its factorization.

221422713332464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282426930293 (or 282426930280 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 46.

The spelling of 221422713332464 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, seven hundred thirteen million, three hundred thirty-two thousand, four hundred sixty-four".