12112516 has 24 divisors (see below), whose sum is σ = 23047640. Its totient is φ = 5536512.

The previous prime is 12112501. The next prime is 12112531. The reversal of 12112516 is 61521121.

It is an interprime number because it is at equal distance from previous prime (12112501) and next prime (12112531).

It can be written as a sum of positive squares in 4 ways, for example, as 2116 + 12110400 = 46^2 + 3480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12112493 and 12112502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4600 + ... + 6736.

Almost surely, 2^12112516 is an apocalyptic number.

It is an amenable number.

12112516 is a deficient number, since it is larger than the sum of its proper divisors (10935124).

12112516 is a wasteful number, since it uses less digits than its factorization.

12112516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263 (or 2261 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 12112516 is about 3480.3040097095. The cubic root of 12112516 is about 229.6561718359.

Adding to 12112516 its reverse (61521121), we get a palindrome (73633637).

The spelling of 12112516 in words is "twelve million, one hundred twelve thousand, five hundred sixteen".