12116825 has 12 divisors (see below), whose sum is σ = 17171520. Its totient is φ = 8308560.

The previous prime is 12116821. The next prime is 12116831. The reversal of 12116825 is 52861121.

It is not a de Polignac number, because 12116825 - 2² = 12116821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12116794 and 12116803.

It is not an unprimeable number, because it can be changed into a prime (12116821) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 34445 + ... + 34794.

It is an arithmetic number, because the mean of its divisors is an integer number (1430960).

Almost surely, 2^12116825 is an apocalyptic number.

It is an amenable number.

12116825 is a deficient number, since it is larger than the sum of its proper divisors (5054695).

12116825 is an equidigital number, since it uses as much as digits as its factorization.

12116825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69256 (or 69251 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 12116825 is about 3480.9230097777. The cubic root of 12116825 is about 229.6834018273.

Adding to 12116825 its reverse (52861121), we get a palindrome (64977946).

The spelling of 12116825 in words is "twelve million, one hundred sixteen thousand, eight hundred twenty-five".