222131221443 has 12 divisors (see below), whose sum is σ = 320869242720. Its totient is φ = 148081465296.

The previous prime is 222131221363. The next prime is 222131221457. The reversal of 222131221443 is 344122131222.

222131221443 is a `hidden beast` number, since 2 + 2 + 213 + 1 + 2 + 2 + 1 + 443 = 666.

It is not a de Polignac number, because 222131221443 - 2²⁶ = 222064112579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222131221493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261403 + ... + 715956.

It is an arithmetic number, because the mean of its divisors is an integer number (26739103560).

Almost surely, 2^222131221443 is an apocalyptic number.

222131221443 is a deficient number, since it is larger than the sum of its proper divisors (98738021277).

222131221443 is a wasteful number, since it uses less digits than its factorization.

222131221443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002618 (or 1002615 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 222131221443 its reverse (344122131222), we get a palindrome (566253352665).

The spelling of 222131221443 in words is "two hundred twenty-two billion, one hundred thirty-one million, two hundred twenty-one thousand, four hundred forty-three".