22041231 has 32 divisors (see below), whose sum is σ = 32514048. Its totient is φ = 13224960.

The previous prime is 22041223. The next prime is 22041259. The reversal of 22041231 is 13214022.

It is not a de Polignac number, because 22041231 - 2³ = 22041223 is a prime.

It is a super-2 number, since 2×22041231² = 971631727990722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22041231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22041211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173490 + ... + 173616.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^22041231 is an apocalyptic number.

22041231 is a deficient number, since it is larger than the sum of its proper divisors (10472817).

22041231 is a wasteful number, since it uses less digits than its factorization.

22041231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22041231 is about 4694.8089417994. The cubic root of 22041231 is about 280.3788706188.

Adding to 22041231 its reverse (13214022), we get a palindrome (35255253).

The spelling of 22041231 in words is "twenty-two million, forty-one thousand, two hundred thirty-one".