22204320231 has 16 divisors (see below), whose sum is σ = 30518156288. Its totient is φ = 14349636000.

The previous prime is 22204320179. The next prime is 22204320233. The reversal of 22204320231 is 13202340222.

It is not a de Polignac number, because 22204320231 - 2¹⁷ = 22204189159 is a prime.

It is a super-2 number, since 2×22204320231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22204320198 and 22204320207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204320233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338995 + ... + 399156.

It is an arithmetic number, because the mean of its divisors is an integer number (1907384768).

Almost surely, 2^22204320231 is an apocalyptic number.

22204320231 is a deficient number, since it is larger than the sum of its proper divisors (8313836057).

22204320231 is a wasteful number, since it uses less digits than its factorization.

22204320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738462.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22204320231 its reverse (13202340222), we get a palindrome (35406660453).

The spelling of 22204320231 in words is "twenty-two billion, two hundred four million, three hundred twenty thousand, two hundred thirty-one".