22004122431 has 32 divisors (see below), whose sum is σ = 32397539328. Its totient is φ = 13223301120.

The previous prime is 22004122429. The next prime is 22004122453. The reversal of 22004122431 is 13422140022.

It is not a de Polignac number, because 22004122431 - 2¹ = 22004122429 is a prime.

It is a super-2 number, since 2×22004122431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22004122398 and 22004122407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004124431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81616 + ... + 225098.

It is an arithmetic number, because the mean of its divisors is an integer number (1012423104).

Almost surely, 2^22004122431 is an apocalyptic number.

22004122431 is a deficient number, since it is larger than the sum of its proper divisors (10393416897).

22004122431 is a wasteful number, since it uses less digits than its factorization.

22004122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143631.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22004122431 its reverse (13422140022), we get a palindrome (35426262453).

The spelling of 22004122431 in words is "twenty-two billion, four million, one hundred twenty-two thousand, four hundred thirty-one".