22012200021020 has 96 divisors (see below), whose sum is σ = 52185783638016. Its totient is φ = 7726715884800.

The previous prime is 22012200021011. The next prime is 22012200021079. The reversal of 22012200021020 is 2012000221022.

It is a junction number, because it is equal to n+sod(n) for n = 22012200020986 and 22012200021004.

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, 1357442 + ... + 6772521.

It is an arithmetic number, because the mean of its divisors is an integer number (543601912896).

Almost surely, 2^{22012200021020} is an apocalyptic number.

22012200021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012200021020 is an abundant number, since it is smaller than the sum of its proper divisors (30173583616996).

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

22012200021020 is a wasteful number, since it uses less digits than its factorization.

22012200021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8130411 (or 8130409 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22012200021020 its reverse (2012000221022), we get a palindrome (24024200242042).

It can be divided in two parts, 2201220002 and 1020, that added together give a palindrome (2201221022).

The spelling of 22012200021020 in words is "twenty-two trillion, twelve billion, two hundred million, twenty-one thousand, twenty".