222112202220 has 96 divisors (see below), whose sum is σ = 731663755200. Its totient is φ = 55745805312.

The previous prime is 222112202159. The next prime is 222112202231. The reversal of 222112202220 is 22202211222.

222112202220 is a `hidden beast` number, since 2 + 221 + 1 + 220 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222112202193 and 222112202202.

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, 12088435 + ... + 12106794.

It is an arithmetic number, because the mean of its divisors is an integer number (7621497450).

Almost surely, 2^222112202220 is an apocalyptic number.

222112202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112202220 is an abundant number, since it is smaller than the sum of its proper divisors (509551552980).

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

222112202220 is a wasteful number, since it uses less digits than its factorization.

222112202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24195264 (or 24195256 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222112202220 its reverse (22202211222), we get a palindrome (244314413442).

The spelling of 222112202220 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred two thousand, two hundred twenty".