22121012032020 has 72 divisors (see below), whose sum is σ = 73200439821600. Its totient is φ = 5362669583040.

The previous prime is 22121012032003. The next prime is 22121012032033. The reversal of 22121012032020 is 2023021012122.

22121012032020 is a `hidden beast` number, since 2 + 212 + 10 + 120 + 320 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22121012031984 and 22121012032002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5586112170 + ... + 5586116129.

It is an arithmetic number, because the mean of its divisors is an integer number (1016672775300).

Almost surely, 2^{22121012032020} is an apocalyptic number.

22121012032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121012032020 is an abundant number, since it is smaller than the sum of its proper divisors (51079427789580).

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

22121012032020 is a wasteful number, since it uses less digits than its factorization.

22121012032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172228325 (or 11172228320 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22121012032020 its reverse (2023021012122), we get a palindrome (24144033044142).

The spelling of 22121012032020 in words is "twenty-two trillion, one hundred twenty-one billion, twelve million, thirty-two thousand, twenty".