22112021210020 has 96 divisors (see below), whose sum is σ = 54154818144000. Its totient is φ = 7580854294272.

The previous prime is 22112021209991. The next prime is 22112021210093. The reversal of 22112021210020 is 2001212021122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22112021209976 and 22112021210003.

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, 144113664 + ... + 144267016.

It is an arithmetic number, because the mean of its divisors is an integer number (564112689000).

Almost surely, 2^{22112021210020} is an apocalyptic number.

22112021210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112021210020 is an abundant number, since it is smaller than the sum of its proper divisors (32042796933980).

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

22112021210020 is a wasteful number, since it uses less digits than its factorization.

22112021210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174402 (or 174386 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22112021210020 its reverse (2001212021122), we get a palindrome (24113233231142).

The spelling of 22112021210020 in words is "twenty-two trillion, one hundred twelve billion, twenty-one million, two hundred ten thousand, twenty".