22012001231022 has 48 divisors (see below), whose sum is σ = 52255564760880. Its totient is φ = 6641175427200.

The previous prime is 22012001230997. The next prime is 22012001231027. The reversal of 22012001231022 is 22013210021022.

22012001231022 is a `hidden beast` number, since 220 + 120 + 0 + 12 + 310 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22012001230986 and 22012001231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012001231027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242687679 + ... + 242778362.

It is an arithmetic number, because the mean of its divisors is an integer number (1088657599185).

Almost surely, 2^{22012001231022} is an apocalyptic number.

22012001231022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22012001231022 is an abundant number, since it is smaller than the sum of its proper divisors (30243563529858).

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

22012001231022 is a wasteful number, since it uses less digits than its factorization.

22012001231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485466289 (or 485466286 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22012001231022 its reverse (22013210021022), we get a palindrome (44025211252044).

The spelling of 22012001231022 in words is "twenty-two trillion, twelve billion, one million, two hundred thirty-one thousand, twenty-two".