222660431 has 16 divisors (see below), whose sum is σ = 259775040. Its totient is φ = 186900480.

The previous prime is 222660421. The next prime is 222660437. The reversal of 222660431 is 134066222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222660431 is a prime.

It is a super-2 number, since 2×222660431² = 99155335066211522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222660431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222660437) 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, 108725 + ... + 110753.

It is an arithmetic number, because the mean of its divisors is an integer number (16235940).

Almost surely, 2^222660431 is an apocalyptic number.

222660431 is a deficient number, since it is larger than the sum of its proper divisors (37114609).

222660431 is a wasteful number, since it uses less digits than its factorization.

222660431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 222660431 is about 14921.8105804892. The cubic root of 222660431 is about 606.1047419587.

The spelling of 222660431 in words is "two hundred twenty-two million, six hundred sixty thousand, four hundred thirty-one".