22218202204 has 12 divisors (see below), whose sum is σ = 42416567928. Its totient is φ = 10099182800.

The previous prime is 22218202177. The next prime is 22218202213. The reversal of 22218202204 is 40220281222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252479527 + ... + 252479614.

It is an arithmetic number, because the mean of its divisors is an integer number (3534713994).

Almost surely, 2^22218202204 is an apocalyptic number.

It is an amenable number.

22218202204 is a deficient number, since it is larger than the sum of its proper divisors (20198365724).

22218202204 is a wasteful number, since it uses less digits than its factorization.

22218202204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504959156 (or 504959154 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 22218202204 its reverse (40220281222), we get a palindrome (62438483426).

It can be divided in two parts, 22218 and 202204, that added together give a palindrome (224422).

The spelling of 22218202204 in words is "twenty-two billion, two hundred eighteen million, two hundred two thousand, two hundred four".