22431203412021 has 48 divisors (see below), whose sum is σ = 33201830975040. Its totient is φ = 14587800864000.

The previous prime is 22431203411993. The next prime is 22431203412061. The reversal of 22431203412021 is 12021430213422.

22431203412021 is a `hidden beast` number, since 2 + 2 + 4 + 312 + 0 + 341 + 2 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 22431203412021 - 2⁵ = 22431203411989 is a prime.

It is a super-2 number, since 2×22431203412021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431203412061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67960030 + ... + 68289296.

It is an arithmetic number, because the mean of its divisors is an integer number (691704811980).

Almost surely, 2^{22431203412021} is an apocalyptic number.

It is an amenable number.

22431203412021 is a deficient number, since it is larger than the sum of its proper divisors (10770627563019).

22431203412021 is a wasteful number, since it uses less digits than its factorization.

22431203412021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330146 (or 330143 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 22431203412021 its reverse (12021430213422), we get a palindrome (34452633625443).

The spelling of 22431203412021 in words is "twenty-two trillion, four hundred thirty-one billion, two hundred three million, four hundred twelve thousand, twenty-one".