22021211202020 has 48 divisors (see below), whose sum is σ = 46943547090048. Its totient is φ = 8675390169600.

The previous prime is 22021211201939. The next prime is 22021211202031. The reversal of 22021211202020 is 2020211212022.

It is a happy number.

It is a super-2 number, since 2×22021211202020² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22021211202020.

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, 5634764 + ... + 8705916.

It is an arithmetic number, because the mean of its divisors is an integer number (977990564376).

Almost surely, 2^{22021211202020} is an apocalyptic number.

22021211202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021211202020 is an abundant number, since it is smaller than the sum of its proper divisors (24922335888028).

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

22021211202020 is a wasteful number, since it uses less digits than its factorization.

22021211202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076580 (or 3076578 counting only the distinct ones).

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

Adding to 22021211202020 its reverse (2020211212022), we get a palindrome (24041422414042).

The spelling of 22021211202020 in words is "twenty-two trillion, twenty-one billion, two hundred eleven million, two hundred two thousand, twenty".