22022220000020 has 12 divisors (see below), whose sum is σ = 46246662000084. Its totient is φ = 8808888000000.

The previous prime is 22022220000007. The next prime is 22022220000031. The reversal of 22022220000020 is 2000002222022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4083640723204 + 17938579276816 = 2020802^2 + 4235396^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 550555499981 + ... + 550555500020.

It is an arithmetic number, because the mean of its divisors is an integer number (3853888500007).

Almost surely, 2^{22022220000020} is an apocalyptic number.

22022220000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022220000020 is an abundant number, since it is smaller than the sum of its proper divisors (24224442000064).

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

22022220000020 is a wasteful number, since it uses less digits than its factorization.

22022220000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101111000010 (or 1101111000008 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22022220000020 its reverse (2000002222022), we get a palindrome (24022222222042).

The spelling of 22022220000020 in words is "twenty-two trillion, twenty-two billion, two hundred twenty million, twenty", and thus it is an aban number.