22004402231 has 8 divisors (see below), whose sum is σ = 25162199040. Its totient is φ = 18850183128.

The previous prime is 22004402213. The next prime is 22004402249. The reversal of 22004402231 is 13220440022.

It is an interprime number because it is at equal distance from previous prime (22004402213) and next prime (22004402249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22004402231 - 2¹⁸ = 22004140087 is a prime.

It is a super-2 number, since 2×22004402231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004402281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881231 + ... + 905856.

It is an arithmetic number, because the mean of its divisors is an integer number (3145274880).

Almost surely, 2^22004402231 is an apocalyptic number.

22004402231 is a deficient number, since it is larger than the sum of its proper divisors (3157796809).

22004402231 is a wasteful number, since it uses less digits than its factorization.

22004402231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788853.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22004402231 its reverse (13220440022), we get a palindrome (35224842253).

The spelling of 22004402231 in words is "twenty-two billion, four million, four hundred two thousand, two hundred thirty-one".