22241631 has 4 divisors (see below), whose sum is σ = 29655512. Its totient is φ = 14827752.

The previous prime is 22241623. The next prime is 22241689. The reversal of 22241631 is 13614222.

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

It is not a de Polignac number, because 22241631 - 2³ = 22241623 is a prime.

It is a super-2 number, since 2×22241631² = 989380299080322, 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 = 22241598 and 22241607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22241731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3706936 + ... + 3706941.

It is an arithmetic number, because the mean of its divisors is an integer number (7413878).

Almost surely, 2^22241631 is an apocalyptic number.

22241631 is a deficient number, since it is larger than the sum of its proper divisors (7413881).

22241631 is an equidigital number, since it uses as much as digits as its factorization.

22241631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7413880.

The product of its digits is 576, while the sum is 21.

The square root of 22241631 is about 4716.1033703684. The cubic root of 22241631 is about 281.2260479355.

Adding to 22241631 its reverse (13614222), we get a palindrome (35855853).

The spelling of 22241631 in words is "twenty-two million, two hundred forty-one thousand, six hundred thirty-one".