22021121110120 has 64 divisors (see below), whose sum is σ = 54659166897600. Its totient is φ = 7917706452480.

The previous prime is 22021121110081. The next prime is 22021121110127. The reversal of 22021121110120 is 2101112112022.

It is a junction number, because it is equal to n+sod(n) for n = 22021121110094 and 22021121110103.

It is not an unprimeable number, because it can be changed into a prime (22021121110127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281129394 + ... + 281207713.

It is an arithmetic number, because the mean of its divisors is an integer number (854049482775).

Almost surely, 2^{22021121110120} is an apocalyptic number.

22021121110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021121110120 is an abundant number, since it is smaller than the sum of its proper divisors (32638045787480).

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

22021121110120 is a wasteful number, since it uses less digits than its factorization.

22021121110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562337218 (or 562337214 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22021121110120 its reverse (2101112112022), we get a palindrome (24122233222142).

The spelling of 22021121110120 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, one hundred ten thousand, one hundred twenty".