12397122 has 12 divisors (see below), whose sum is σ = 26860470. Its totient is φ = 4132368.

The previous prime is 12397111. The next prime is 12397157. The reversal of 12397122 is 22179321.

It can be written as a sum of positive squares in only one way, i.e., 12047841 + 349281 = 3471^2 + 591^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344347 + ... + 344382.

Almost surely, 2^12397122 is an apocalyptic number.

12397122 is an abundant number, since it is smaller than the sum of its proper divisors (14463348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12397122 is a wasteful number, since it uses less digits than its factorization.

12397122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688737 (or 688734 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 12397122 is about 3520.9547000778. The cubic root of 12397122 is about 231.4409971119.

The spelling of 12397122 in words is "twelve million, three hundred ninety-seven thousand, one hundred twenty-two".