12122333131 has 4 divisors (see below), whose sum is σ = 12235626072. Its totient is φ = 12009040192.

The previous prime is 12122333129. The next prime is 12122333137. The reversal of 12122333131 is 13133322121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13133322121 = 42023 ⋅312527.

It is a cyclic number.

It is not a de Polignac number, because 12122333131 - 2¹ = 12122333129 is a prime.

It is a super-2 number, since 2×12122333131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122333137) 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, 56646310 + ... + 56646523.

It is an arithmetic number, because the mean of its divisors is an integer number (3058906518).

Almost surely, 2^12122333131 is an apocalyptic number.

12122333131 is a deficient number, since it is larger than the sum of its proper divisors (113292941).

12122333131 is a wasteful number, since it uses less digits than its factorization.

12122333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113292940.

The product of its digits is 648, while the sum is 22.

Adding to 12122333131 its reverse (13133322121), we get a palindrome (25255655252).

The spelling of 12122333131 in words is "twelve billion, one hundred twenty-two million, three hundred thirty-three thousand, one hundred thirty-one".