22020122012 has 48 divisors (see below), whose sum is σ = 44546040000. Its totient is φ = 9329209344.

The previous prime is 22020121969. The next prime is 22020122039. The reversal of 22020122012 is 21022102022.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 1362314 + ... + 1378382.

It is an arithmetic number, because the mean of its divisors is an integer number (928042500).

Almost surely, 2^22020122012 is an apocalyptic number.

It is an amenable number.

22020122012 is an abundant number, since it is smaller than the sum of its proper divisors (22525917988).

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

22020122012 is a wasteful number, since it uses less digits than its factorization.

22020122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16638 (or 16636 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22020122012 its reverse (21022102022), we get a palindrome (43042224034).

The spelling of 22020122012 in words is "twenty-two billion, twenty million, one hundred twenty-two thousand, twelve".