22021020111200 has 72 divisors (see below), whose sum is σ = 58645980401400. Its totient is φ = 8007643673600.

The previous prime is 22021020111127. The next prime is 22021020111221. The reversal of 22021020111200 is 211102012022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251185525 + ... + 1251203124.

It is an arithmetic number, because the mean of its divisors is an integer number (814527505575).

Almost surely, 2^{22021020111200} is an apocalyptic number.

22021020111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021020111200 is an abundant number, since it is smaller than the sum of its proper divisors (36624960290200).

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

22021020111200 is a wasteful number, since it uses less digits than its factorization.

22021020111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502388680 (or 2502388667 counting only the distinct ones).

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

Adding to 22021020111200 its reverse (211102012022), we get a palindrome (22232122123222).

The spelling of 22021020111200 in words is "twenty-two trillion, twenty-one billion, twenty million, one hundred eleven thousand, two hundred".