220668222 has 32 divisors (see below), whose sum is σ = 455270400. Its totient is φ = 71251488.

The previous prime is 220668209. The next prime is 220668271. The reversal of 220668222 is 222866022.

220668222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220668222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50979 + ... + 55137.

It is an arithmetic number, because the mean of its divisors is an integer number (14227200).

Almost surely, 2^220668222 is an apocalyptic number.

220668222 is an abundant number, since it is smaller than the sum of its proper divisors (234602178).

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

220668222 is a wasteful number, since it uses less digits than its factorization.

220668222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 220668222 is about 14854.9056543621. The cubic root of 220668222 is about 604.2916573827.

The spelling of 220668222 in words is "two hundred twenty million, six hundred sixty-eight thousand, two hundred twenty-two".