12225118 has 8 divisors (see below), whose sum is σ = 18404712. Its totient is φ = 6090216.

The previous prime is 12225107. The next prime is 12225149. The reversal of 12225118 is 81152221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12225118² = 298907020227848, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10480 + ... + 11587.

It is an arithmetic number, because the mean of its divisors is an integer number (2300589).

Almost surely, 2^12225118 is an apocalyptic number.

12225118 is a deficient number, since it is larger than the sum of its proper divisors (6179594).

12225118 is a wasteful number, since it uses less digits than its factorization.

12225118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22346.

The product of its digits is 320, while the sum is 22.

The square root of 12225118 is about 3496.4436217391. The cubic root of 12225118 is about 230.3656314275.

Adding to 12225118 its reverse (81152221), we get a palindrome (93377339).

The spelling of 12225118 in words is "twelve million, two hundred twenty-five thousand, one hundred eighteen".