22112211200 has 54 divisors (see below), whose sum is σ = 54731193594. Its totient is φ = 8844881920.

The previous prime is 22112211157. The next prime is 22112211217. The reversal of 22112211200 is 211221122.

It can be written as a sum of positive squares in 3 ways, for example, as 1357775104 + 20754436096 = 36848^2 + 144064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1721117 + ... + 1733916.

Almost surely, 2^22112211200 is an apocalyptic number.

22112211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112211200 is an abundant number, since it is smaller than the sum of its proper divisors (32618982394).

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

22112211200 is an equidigital number, since it uses as much as digits as its factorization.

22112211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455059 (or 3455040 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22112211200 its reverse (211221122), we get a palindrome (22323432322).

The spelling of 22112211200 in words is "twenty-two billion, one hundred twelve million, two hundred eleven thousand, two hundred".