22441231 has 6 divisors (see below), whose sum is σ = 22931120. Its totient is φ = 21961596.

The previous prime is 22441193. The next prime is 22441249. The reversal of 22441231 is 13214422.

It is not a de Polignac number, because 22441231 - 2⁷ = 22441103 is a prime.

It is a super-2 number, since 2×22441231² = 1007217697590722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22441199 and 22441208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22441271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2871 + ... + 7288.

Almost surely, 2^22441231 is an apocalyptic number.

22441231 is a deficient number, since it is larger than the sum of its proper divisors (489889).

22441231 is an equidigital number, since it uses as much as digits as its factorization.

22441231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253 (or 10206 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 22441231 is about 4737.2176433008. The cubic root of 22441231 is about 282.0647999235.

Adding to 22441231 its reverse (13214422), we get a palindrome (35655653).

The spelling of 22441231 in words is "twenty-two million, four hundred forty-one thousand, two hundred thirty-one".