22212204 has 48 divisors (see below), whose sum is σ = 61813248. Its totient is φ = 6069888.

The previous prime is 22212199. The next prime is 22212233. The reversal of 22212204 is 40221222.

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, 3817 + ... + 7680.

It is an arithmetic number, because the mean of its divisors is an integer number (1287776).

Almost surely, 2^22212204 is an apocalyptic number.

It is an amenable number.

22212204 is an abundant number, since it is smaller than the sum of its proper divisors (39601044).

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

22212204 is a wasteful number, since it uses less digits than its factorization.

22212204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11534 (or 11532 counting only the distinct ones).

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

The square root of 22212204 is about 4712.9824951935. The cubic root of 22212204 is about 281.1019669375.

Adding to 22212204 its reverse (40221222), we get a palindrome (62433426).

It can be divided in two parts, 22 and 212204, that added together give a triangular number (212226 = T₆₅₁).

The spelling of 22212204 in words is "twenty-two million, two hundred twelve thousand, two hundred four".