22111121112200 has 48 divisors (see below), whose sum is σ = 51408720838500. Its totient is φ = 8844385777920.

The previous prime is 22111121112181. The next prime is 22111121112209. The reversal of 22111121112200 is 221112111122.

It can be written as a sum of positive squares in 6 ways, for example, as 2463763451044 + 19647357661156 = 1569638^2 + 4432534^2 .

It is not an unprimeable number, because it can be changed into a prime (22111121112209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36634466 + ... + 37233134.

Almost surely, 2^{22111121112200} is an apocalyptic number.

22111121112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111121112200 is an abundant number, since it is smaller than the sum of its proper divisors (29297599726300).

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

22111121112200 is a wasteful number, since it uses less digits than its factorization.

22111121112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783354 (or 783345 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22111121112200 its reverse (221112111122), we get a palindrome (22332233223322).

The spelling of 22111121112200 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, one hundred twelve thousand, two hundred".