22122213200 has 30 divisors (see below), whose sum is σ = 53148618174. Its totient is φ = 8848885120.

The previous prime is 22122213199. The next prime is 22122213227. The reversal of 22122213200 is 231222122.

It can be written as a sum of positive squares in 3 ways, for example, as 4649603344 + 17472609856 = 68188^2 + 132184^2 .

It is a congruent number.

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, 27652367 + ... + 27653166.

Almost surely, 2^22122213200 is an apocalyptic number.

22122213200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122213200 is an abundant number, since it is smaller than the sum of its proper divisors (31026404974).

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

22122213200 is a wasteful number, since it uses less digits than its factorization.

22122213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55305551 (or 55305540 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22122213200 its reverse (231222122), we get a palindrome (22353435322).

The spelling of 22122213200 in words is "twenty-two billion, one hundred twenty-two million, two hundred thirteen thousand, two hundred".