22241231 has 4 divisors (see below), whose sum is σ = 23008200. Its totient is φ = 21474264.

The previous prime is 22241209. The next prime is 22241237. The reversal of 22241231 is 13214222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22241231 - 2¹⁴ = 22224847 is a prime.

It is a super-2 number, since 2×22241231² = 989344712790722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22241237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383441 + ... + 383498.

It is an arithmetic number, because the mean of its divisors is an integer number (5752050).

Almost surely, 2^22241231 is an apocalyptic number.

22241231 is a deficient number, since it is larger than the sum of its proper divisors (766969).

22241231 is an equidigital number, since it uses as much as digits as its factorization.

22241231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766968.

The product of its digits is 192, while the sum is 17.

The square root of 22241231 is about 4716.0609622862. The cubic root of 22241231 is about 281.2243620416.

Adding to 22241231 its reverse (13214222), we get a palindrome (35455453).

The spelling of 22241231 in words is "twenty-two million, two hundred forty-one thousand, two hundred thirty-one".