22042401231 has 16 divisors (see below), whose sum is σ = 30361098240. Its totient is φ = 14210043360.

The previous prime is 22042401151. The next prime is 22042401289. The reversal of 22042401231 is 13210424022.

It is a de Polignac number, because none of the positive numbers 2^k-22042401231 is a prime.

It is a super-2 number, since 2×22042401231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22042401198 and 22042401207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042401131) 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, 32821 + ... + 212513.

It is an arithmetic number, because the mean of its divisors is an integer number (1897568640).

Almost surely, 2^22042401231 is an apocalyptic number.

22042401231 is a deficient number, since it is larger than the sum of its proper divisors (8318697009).

22042401231 is a wasteful number, since it uses less digits than its factorization.

22042401231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181046.

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

Adding to 22042401231 its reverse (13210424022), we get a palindrome (35252825253).

The spelling of 22042401231 in words is "twenty-two billion, forty-two million, four hundred one thousand, two hundred thirty-one".