221422654652124 has 96 divisors (see below), whose sum is σ = 527762013004800. Its totient is φ = 72232151397120.

The previous prime is 221422654652113. The next prime is 221422654652191. The reversal of 221422654652124 is 421256456224122.

It is a super-2 number, since 2×221422654652124² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244563582 + ... + 245467290.

It is an arithmetic number, because the mean of its divisors is an integer number (5497520968800).

Almost surely, 2^{221422654652124} is an apocalyptic number.

It is an amenable number.

221422654652124 is an abundant number, since it is smaller than the sum of its proper divisors (306339358352676).

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

221422654652124 is a wasteful number, since it uses less digits than its factorization.

221422654652124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905323 (or 905321 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 48.

The spelling of 221422654652124 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, six hundred fifty-four million, six hundred fifty-two thousand, one hundred twenty-four".