22112210020 has 12 divisors (see below), whose sum is σ = 46435641084. Its totient is φ = 8844884000.

The previous prime is 22112210011. The next prime is 22112210093. The reversal of 22112210020 is 2001221122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12399713316 + 9712496704 = 111354^2 + 98552^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552805231 + ... + 552805270.

It is an arithmetic number, because the mean of its divisors is an integer number (3869636757).

Almost surely, 2^22112210020 is an apocalyptic number.

22112210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112210020 is an abundant number, since it is smaller than the sum of its proper divisors (24323431064).

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

22112210020 is a wasteful number, since it uses less digits than its factorization.

22112210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105610510 (or 1105610508 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22112210020 its reverse (2001221122), we get a palindrome (24113431142).

The spelling of 22112210020 in words is "twenty-two billion, one hundred twelve million, two hundred ten thousand, twenty".