222200002120 has 32 divisors (see below), whose sum is σ = 529358830200. Its totient is φ = 83651765248.

The previous prime is 222200002109. The next prime is 222200002139. The reversal of 222200002120 is 21200002222.

It can be written as a sum of positive squares in 4 ways, for example, as 220781575876 + 1418426244 = 469874^2 + 37662^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222200002120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163381675 + ... + 163383034.

Almost surely, 2^222200002120 is an apocalyptic number.

222200002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222200002120 is an abundant number, since it is smaller than the sum of its proper divisors (307158828080).

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

222200002120 is a wasteful number, since it uses less digits than its factorization.

222200002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326764737 (or 326764733 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 222200002120 its reverse (21200002222), we get a palindrome (243400004342).

The spelling of 222200002120 in words is "two hundred twenty-two billion, two hundred million, two thousand, one hundred twenty".