22112001332120 has 128 divisors (see below), whose sum is σ = 56937923602560. Its totient is φ = 7570795991040.

The previous prime is 22112001332107. The next prime is 22112001332123. The reversal of 22112001332120 is 2123310021122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22112001332092 and 22112001332101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112001332123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1851765350 + ... + 1851777290.

It is an arithmetic number, because the mean of its divisors is an integer number (444827528145).

Almost surely, 2^{22112001332120} is an apocalyptic number.

22112001332120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112001332120 is an abundant number, since it is smaller than the sum of its proper divisors (34825922270440).

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

22112001332120 is a wasteful number, since it uses less digits than its factorization.

22112001332120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20533 (or 20529 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22112001332120 its reverse (2123310021122), we get a palindrome (24235311353242).

The spelling of 22112001332120 in words is "twenty-two trillion, one hundred twelve billion, one million, three hundred thirty-two thousand, one hundred twenty".