22122020011 has 32 divisors (see below), whose sum is σ = 28466823168. Its totient is φ = 16709172480.

The previous prime is 22122019961. The next prime is 22122020027. The reversal of 22122020011 is 11002022122.

It is a happy number.

It is not a de Polignac number, because 22122020011 - 2¹⁷ = 22121888939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 22122019973 and 22122020000.

It is not an unprimeable number, because it can be changed into a prime (22122020051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1080310 + ... + 1100596.

It is an arithmetic number, because the mean of its divisors is an integer number (889588224).

Almost surely, 2^22122020011 is an apocalyptic number.

22122020011 is a deficient number, since it is larger than the sum of its proper divisors (6344803157).

22122020011 is a wasteful number, since it uses less digits than its factorization.

22122020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20851.

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

Adding to 22122020011 its reverse (11002022122), we get a palindrome (33124042133).

The spelling of 22122020011 in words is "twenty-two billion, one hundred twenty-two million, twenty thousand, eleven".