222313312100 has 54 divisors (see below), whose sum is σ = 530263210722. Its totient is φ = 80841200000.

The previous prime is 222313312093. The next prime is 222313312127. The reversal of 222313312100 is 1213313222.

It can be written as a sum of positive squares in 3 ways, for example, as 37005447424 + 185307864676 = 192368^2 + 430474^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9174401 + ... + 9198600.

Almost surely, 2^222313312100 is an apocalyptic number.

222313312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222313312100 is an abundant number, since it is smaller than the sum of its proper divisors (307949898622).

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

222313312100 is a wasteful number, since it uses less digits than its factorization.

222313312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373037 (or 18373019 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 222313312100 its reverse (1213313222), we get a palindrome (223526625322).

The spelling of 222313312100 in words is "two hundred twenty-two billion, three hundred thirteen million, three hundred twelve thousand, one hundred".