22444242231 has 16 divisors (see below), whose sum is σ = 32067753984. Its totient is φ = 13912988544.

The previous prime is 22444242221. The next prime is 22444242311. The reversal of 22444242231 is 13224244422.

It is a happy number.

It is not a de Polignac number, because 22444242231 - 2⁵ = 22444242199 is a prime.

It is a super-2 number, since 2×22444242231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444242221) 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, 2646871 + ... + 2655336.

It is an arithmetic number, because the mean of its divisors is an integer number (2004234624).

Almost surely, 2^22444242231 is an apocalyptic number.

22444242231 is a deficient number, since it is larger than the sum of its proper divisors (9623511753).

22444242231 is a wasteful number, since it uses less digits than its factorization.

22444242231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302310.

The product of its digits is 24576, while the sum is 30.

Adding to 22444242231 its reverse (13224244422), we get a palindrome (35668486653).

The spelling of 22444242231 in words is "twenty-two billion, four hundred forty-four million, two hundred forty-two thousand, two hundred thirty-one".