222234233220 has 72 divisors (see below), whose sum is σ = 686829603096. Its totient is φ = 58144300032.

The previous prime is 222234233219. The next prime is 222234233323. The reversal of 222234233220 is 22332432222.

It can be written as a sum of positive squares in 4 ways, for example, as 3255158916 + 218979074304 = 57054^2 + 467952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11637957 + ... + 11657036.

It is an arithmetic number, because the mean of its divisors is an integer number (9539300043).

Almost surely, 2^222234233220 is an apocalyptic number.

222234233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222234233220 is an abundant number, since it is smaller than the sum of its proper divisors (464595369876).

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

222234233220 is a wasteful number, since it uses less digits than its factorization.

222234233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23295061 (or 23295056 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 222234233220 its reverse (22332432222), we get a palindrome (244566665442).

The spelling of 222234233220 in words is "two hundred twenty-two billion, two hundred thirty-four million, two hundred thirty-three thousand, two hundred twenty".