12122631 has 12 divisors (see below), whose sum is σ = 17559360. Its totient is φ = 8059200.

The previous prime is 12122623. The next prime is 12122639. The reversal of 12122631 is 13622121.

12122631 is a `hidden beast` number, since 12 + 1 + 22 + 631 = 666.

It is an interprime number because it is at equal distance from previous prime (12122623) and next prime (12122639).

It is not a de Polignac number, because 12122631 - 2³ = 12122623 is a prime.

It is a super-2 number, since 2×12122631² = 293916364724322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1930 + ... + 5288.

It is an arithmetic number, because the mean of its divisors is an integer number (1463280).

Almost surely, 2^12122631 is an apocalyptic number.

12122631 is a deficient number, since it is larger than the sum of its proper divisors (5436729).

12122631 is a wasteful number, since it uses less digits than its factorization.

12122631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3763 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 12122631 is about 3481.7568841032. The cubic root of 12122631 is about 229.7200816476.

Adding to 12122631 its reverse (13622121), we get a palindrome (25744752).

The spelling of 12122631 in words is "twelve million, one hundred twenty-two thousand, six hundred thirty-one".