222838665 has 32 divisors (see below), whose sum is σ = 408036096. Its totient is φ = 101729280.

The previous prime is 222838657. The next prime is 222838699. The reversal of 222838665 is 566838222.

222838665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222838665 - 2³ = 222838657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149725 + ... + 151205.

It is an arithmetic number, because the mean of its divisors is an integer number (12751128).

Almost surely, 2^222838665 is an apocalyptic number.

It is an amenable number.

222838665 is a deficient number, since it is larger than the sum of its proper divisors (185197431).

222838665 is a wasteful number, since it uses less digits than its factorization.

222838665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929.

The product of its digits is 276480, while the sum is 42.

The square root of 222838665 is about 14927.7816503324. The cubic root of 222838665 is about 606.2664226252.

The spelling of 222838665 in words is "two hundred twenty-two million, eight hundred thirty-eight thousand, six hundred sixty-five".