12225115 has 16 divisors (see below), whose sum is σ = 17157888. Its totient is φ = 8186976.

The previous prime is 12225107. The next prime is 12225149. The reversal of 12225115 is 51152221.

It is not a de Polignac number, because 12225115 - 2³ = 12225107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12225092 and 12225101.

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 15 ways as a sum of consecutive naturals, for example, 2557 + ... + 5566.

It is an arithmetic number, because the mean of its divisors is an integer number (1072368).

Almost surely, 2^12225115 is an apocalyptic number.

12225115 is a deficient number, since it is larger than the sum of its proper divisors (4932773).

12225115 is an equidigital number, since it uses as much as digits as its factorization.

12225115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178.

The product of its digits is 200, while the sum is 19.

The square root of 12225115 is about 3496.4431927317. The cubic root of 12225115 is about 230.3656125839.

Adding to 12225115 its reverse (51152221), we get a palindrome (63377336).

The spelling of 12225115 in words is "twelve million, two hundred twenty-five thousand, one hundred fifteen".