22212222112200 has 48 divisors (see below), whose sum is σ = 68857888549680. Its totient is φ = 5923259229760.

The previous prime is 22212222112193. The next prime is 22212222112219. The reversal of 22212222112200 is 221122221222.

It is a super-2 number, since 2×22212222112200² (a number of 27 digits) contains 22 as substring.

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, 18510184494 + ... + 18510185693.

It is an arithmetic number, because the mean of its divisors is an integer number (1434539344785).

Almost surely, 2^{22212222112200} is an apocalyptic number.

22212222112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212222112200 is an abundant number, since it is smaller than the sum of its proper divisors (46645666437480).

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

22212222112200 is a wasteful number, since it uses less digits than its factorization.

22212222112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37020370206 (or 37020370197 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22212222112200 its reverse (221122221222), we get a palindrome (22433344333422).

The spelling of 22212222112200 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twelve thousand, two hundred".