22122101200 has 30 divisors (see below), whose sum is σ = 53148349094. Its totient is φ = 8848840320.

The previous prime is 22122101161. The next prime is 22122101231. The reversal of 22122101200 is 210122122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2875533376 + 19246567824 = 53624^2 + 138732^2 .

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, 27652227 + ... + 27653026.

Almost surely, 2^22122101200 is an apocalyptic number.

22122101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122101200 is an abundant number, since it is smaller than the sum of its proper divisors (31026247894).

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

22122101200 is a wasteful number, since it uses less digits than its factorization.

22122101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55305271 (or 55305260 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22122101200 its reverse (210122122), we get a palindrome (22332223322).

The spelling of 22122101200 in words is "twenty-two billion, one hundred twenty-two million, one hundred one thousand, two hundred".