12112866 has 12 divisors (see below), whose sum is σ = 26244582. Its totient is φ = 4037616.

The previous prime is 12112819. The next prime is 12112883. The reversal of 12112866 is 66821121.

It can be written as a sum of positive squares in only one way, i.e., 12047841 + 65025 = 3471^2 + 255^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 336451 + ... + 336486.

Almost surely, 2^12112866 is an apocalyptic number.

12112866 is an abundant number, since it is smaller than the sum of its proper divisors (14131716).

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

12112866 is a wasteful number, since it uses less digits than its factorization.

12112866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672945 (or 672942 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 12112866 is about 3480.3542923099. The cubic root of 12112866 is about 229.6583838422.

Adding to 12112866 its reverse (66821121), we get a palindrome (78933987).

The spelling of 12112866 in words is "twelve million, one hundred twelve thousand, eight hundred sixty-six".