222312122220 has 96 divisors (see below), whose sum is σ = 669894998976. Its totient is φ = 54881280000.

The previous prime is 222312122173. The next prime is 222312122239. The reversal of 222312122220 is 22221213222.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1724281 + ... + 1848720.

It is an arithmetic number, because the mean of its divisors is an integer number (6978072906).

Almost surely, 2^222312122220 is an apocalyptic number.

222312122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222312122220 is an abundant number, since it is smaller than the sum of its proper divisors (447582876756).

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

222312122220 is a wasteful number, since it uses less digits than its factorization.

222312122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573091 (or 3573089 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222312122220 its reverse (22221213222), we get a palindrome (244533335442).

The spelling of 222312122220 in words is "two hundred twenty-two billion, three hundred twelve million, one hundred twenty-two thousand, two hundred twenty".