22101000122020 has 48 divisors (see below), whose sum is σ = 46515306172608. Its totient is φ = 8820744897920.

The previous prime is 22101000121997. The next prime is 22101000122063. The reversal of 22101000122020 is 2022100010122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121730910 + ... + 121912330.

It is an arithmetic number, because the mean of its divisors is an integer number (969068878596).

Almost surely, 2^{22101000122020} is an apocalyptic number.

22101000122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101000122020 is an abundant number, since it is smaller than the sum of its proper divisors (24414306050588).

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

22101000122020 is a wasteful number, since it uses less digits than its factorization.

22101000122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194940 (or 194938 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22101000122020 its reverse (2022100010122), we get a palindrome (24123100132142).

The spelling of 22101000122020 in words is "twenty-two trillion, one hundred one billion, one hundred twenty-two thousand, twenty".