220122222 has 16 divisors (see below), whose sum is σ = 466141392. Its totient is φ = 69057920.

The previous prime is 220122181. The next prime is 220122233. The reversal of 220122222 is 222221022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078929 + ... + 1079132.

It is an arithmetic number, because the mean of its divisors is an integer number (29133837).

Almost surely, 2^220122222 is an apocalyptic number.

220122222 is an abundant number, since it is smaller than the sum of its proper divisors (246019170).

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

220122222 is a wasteful number, since it uses less digits than its factorization.

220122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158083.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 220122222 is about 14836.5165048943. The cubic root of 220122222 is about 603.7928455720.

Adding to 220122222 its reverse (222221022), we get a palindrome (442343244).

The spelling of 220122222 in words is "two hundred twenty million, one hundred twenty-two thousand, two hundred twenty-two".