22202121222120 has 128 divisors (see below), whose sum is σ = 76123691735040. Its totient is φ = 5074628348160.

The previous prime is 22202121222107. The next prime is 22202121222137. The reversal of 22202121222120 is 2122212120222.

It is a super-2 number, since 2×22202121222120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31224879 + ... + 31928001.

It is an arithmetic number, because the mean of its divisors is an integer number (594716341680).

Almost surely, 2^{22202121222120} is an apocalyptic number.

22202121222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202121222120 is an abundant number, since it is smaller than the sum of its proper divisors (53921570512920).

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

22202121222120 is a wasteful number, since it uses less digits than its factorization.

22202121222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740735 (or 740731 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22202121222120 its reverse (2122212120222), we get a palindrome (24324333342342).

The spelling of 22202121222120 in words is "twenty-two trillion, two hundred two billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty".