222112203220 has 12 divisors (see below), whose sum is σ = 466435626804. Its totient is φ = 88844881280.

The previous prime is 222112203197. The next prime is 222112203227. The reversal of 222112203220 is 22302211222.

It can be written as a sum of positive squares in 2 ways, for example, as 59062608784 + 163049594436 = 243028^2 + 403794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112203227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552805061 + ... + 5552805100.

It is an arithmetic number, because the mean of its divisors is an integer number (38869635567).

Almost surely, 2^222112203220 is an apocalyptic number.

222112203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112203220 is an abundant number, since it is smaller than the sum of its proper divisors (244323423584).

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

222112203220 is a wasteful number, since it uses less digits than its factorization.

222112203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105610170 (or 11105610168 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222112203220 its reverse (22302211222), we get a palindrome (244414414442).

The spelling of 222112203220 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred three thousand, two hundred twenty".