222112221012200 has 48 divisors (see below), whose sum is σ = 529006302015660. Its totient is φ = 86677939904000.

The previous prime is 222112221012151. The next prime is 222112221012233. The reversal of 222112221012200 is 2210122211222.

It can be written as a sum of positive squares in 6 ways, for example, as 147574295716 + 221964646716484 = 384154^2 + 14898478^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13543419911 + ... + 13543436310.

Almost surely, 2^{222112221012200} is an apocalyptic number.

222112221012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222112221012200 is an abundant number, since it is smaller than the sum of its proper divisors (306894081003460).

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

222112221012200 is a wasteful number, since it uses less digits than its factorization.

222112221012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27086856278 (or 27086856269 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222112221012200 its reverse (2210122211222), we get a palindrome (224322343223422).

The spelling of 222112221012200 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, twelve thousand, two hundred".