222909222 has 32 divisors (see below), whose sum is σ = 455401440. Its totient is φ = 72723200.

The previous prime is 222909221. The next prime is 222909227.

222909222 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 222909222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222909221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51868 + ... + 56000.

It is an arithmetic number, because the mean of its divisors is an integer number (14231295).

Almost surely, 2^222909222 is an apocalyptic number.

222909222 is an abundant number, since it is smaller than the sum of its proper divisors (232492218).

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

222909222 is a wasteful number, since it uses less digits than its factorization.

222909222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 222909222 is about 14930.1447414283. The cubic root of 222909222 is about 606.3304028835.

The spelling of 222909222 in words is "two hundred twenty-two million, nine hundred nine thousand, two hundred twenty-two".