22112011020020 has 48 divisors (see below), whose sum is σ = 47738064496080. Its totient is φ = 8597123702784.

The previous prime is 22112011019999. The next prime is 22112011020037. The reversal of 22112011020020 is 2002011021122.

It can be written as a sum of positive squares in 8 ways, for example, as 217060946404 + 21894950073616 = 465898^2 + 4679204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22112011019977 and 22112011020004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14247725 + ... + 15723284.

It is an arithmetic number, because the mean of its divisors is an integer number (994543010335).

Almost surely, 2^{22112011020020} is an apocalyptic number.

22112011020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112011020020 is an abundant number, since it is smaller than the sum of its proper divisors (25626053476060).

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

22112011020020 is a wasteful number, since it uses less digits than its factorization.

22112011020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29972052 (or 29972050 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22112011020020 its reverse (2002011021122), we get a palindrome (24114022041142).

The spelling of 22112011020020 in words is "twenty-two trillion, one hundred twelve billion, eleven million, twenty thousand, twenty".