12311122 has 4 divisors (see below), whose sum is σ = 18466686. Its totient is φ = 6155560.

The previous prime is 12311119. The next prime is 12311137. The reversal of 12311122 is 22111321.

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

It can be written as a sum of positive squares in only one way, i.e., 12243001 + 68121 = 3499^2 + 261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077779 + ... + 3077782.

Almost surely, 2^12311122 is an apocalyptic number.

12311122 is a deficient number, since it is larger than the sum of its proper divisors (6155564).

12311122 is an equidigital number, since it uses as much as digits as its factorization.

12311122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155563.

The product of its digits is 24, while the sum is 13.

The square root of 12311122 is about 3508.7208495405. The cubic root of 12311122 is about 230.9045788183.

Adding to 12311122 its reverse (22111321), we get a palindrome (34422443).

The spelling of 12311122 in words is "twelve million, three hundred eleven thousand, one hundred twenty-two".