12225986 has 8 divisors (see below), whose sum is σ = 18639804. Its totient is φ = 6012720.

The previous prime is 12225937. The next prime is 12225989. The reversal of 12225986 is 68952221.

It is a happy number.

12225986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8497225 + 3728761 = 2915^2 + 1931^2 .

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12225989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49985 + ... + 50228.

Almost surely, 2^12225986 is an apocalyptic number.

12225986 is a deficient number, since it is larger than the sum of its proper divisors (6413818).

12225986 is a wasteful number, since it uses less digits than its factorization.

12225986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100276.

The product of its digits is 17280, while the sum is 35.

The square root of 12225986 is about 3496.5677456615. The cubic root of 12225986 is about 230.3710833895.

The spelling of 12225986 in words is "twelve million, two hundred twenty-five thousand, nine hundred eighty-six".