22122102021020 has 96 divisors (see below), whose sum is σ = 47465124106176. Its totient is φ = 8657655552000.

The previous prime is 22122102021013. The next prime is 22122102021031. The reversal of 22122102021020 is 2012020122122.

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 22122102021020.

It is a congruent number.

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, 1239255095 + ... + 1239272945.

It is an arithmetic number, because the mean of its divisors is an integer number (494428376106).

Almost surely, 2^{22122102021020} is an apocalyptic number.

22122102021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122102021020 is an abundant number, since it is smaller than the sum of its proper divisors (25343022085156).

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

22122102021020 is a wasteful number, since it uses less digits than its factorization.

22122102021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21111 (or 21109 counting only the distinct ones).

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

Adding to 22122102021020 its reverse (2012020122122), we get a palindrome (24134122143142).

The spelling of 22122102021020 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred two million, twenty-one thousand, twenty".