221657221403032 has 32 divisors (see below), whose sum is σ = 456502286649600. Its totient is φ = 100430503059744.

The previous prime is 221657221403021. The next prime is 221657221403039. The reversal of 221657221403032 is 230304122756122.

It is a super-2 number, since 2×221657221403032² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221657221403039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31701544188 + ... + 31701551179.

It is an arithmetic number, because the mean of its divisors is an integer number (14265696457800).

Almost surely, 2^{221657221403032} is an apocalyptic number.

It is an amenable number.

221657221403032 is an abundant number, since it is smaller than the sum of its proper divisors (234845065246568).

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

221657221403032 is a wasteful number, since it uses less digits than its factorization.

221657221403032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63403095415 (or 63403095411 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 221657221403032 in words is "two hundred twenty-one trillion, six hundred fifty-seven billion, two hundred twenty-one million, four hundred three thousand, thirty-two".