22112020020 has 72 divisors (see below), whose sum is σ = 65769921504. Its totient is φ = 5549679104.

The previous prime is 22112020019. The next prime is 22112020043. The reversal of 22112020020 is 2002021122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22112019978 and 22112020005.

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, 620262 + ... + 654941.

It is an arithmetic number, because the mean of its divisors is an integer number (913471132).

Almost surely, 2^22112020020 is an apocalyptic number.

22112020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112020020 is an abundant number, since it is smaller than the sum of its proper divisors (43657901484).

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

22112020020 is a wasteful number, since it uses less digits than its factorization.

22112020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275249 (or 1275230 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22112020020 its reverse (2002021122), we get a palindrome (24114041142).

The spelling of 22112020020 in words is "twenty-two billion, one hundred twelve million, twenty thousand, twenty".