22112021011220 has 96 divisors (see below), whose sum is σ = 53152979712000. Its totient is φ = 7569255164544.

The previous prime is 22112021011189. The next prime is 22112021011291. The reversal of 22112021011220 is 2211012021122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234939731 + ... + 235033829.

It is an arithmetic number, because the mean of its divisors is an integer number (553676872000).

Almost surely, 2^{22112021011220} is an apocalyptic number.

22112021011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112021011220 is an abundant number, since it is smaller than the sum of its proper divisors (31040958700780).

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

22112021011220 is a wasteful number, since it uses less digits than its factorization.

22112021011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96757 (or 96755 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22112021011220 its reverse (2211012021122), we get a palindrome (24323033032342).

The spelling of 22112021011220 in words is "twenty-two trillion, one hundred twelve billion, twenty-one million, eleven thousand, two hundred twenty".