22012021122020 has 24 divisors (see below), whose sum is σ = 46236746203200. Its totient is φ = 8802617620832.

The previous prime is 22012021121999. The next prime is 22012021122037. The reversal of 22012021122020 is 2022112021022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22012021122020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136844360 + ... + 137005119.

It is an arithmetic number, because the mean of its divisors is an integer number (1926531091800).

Almost surely, 2^{22012021122020} is an apocalyptic number.

22012021122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012021122020 is an abundant number, since it is smaller than the sum of its proper divisors (24224725081180).

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

22012021122020 is a wasteful number, since it uses less digits than its factorization.

22012021122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273853507 (or 273853505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22012021122020 its reverse (2022112021022), we get a palindrome (24034133143042).

The spelling of 22012021122020 in words is "twenty-two trillion, twelve billion, twenty-one million, one hundred twenty-two thousand, twenty".