12225942 has 12 divisors (see below), whose sum is σ = 26489580. Its totient is φ = 4075308.

The previous prime is 12225937. The next prime is 12225989. The reversal of 12225942 is 24952221.

It is a happy number.

It is a plaindrome in base 15.

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 5 ways as a sum of consecutive naturals, for example, 339592 + ... + 339627.

It is an arithmetic number, because the mean of its divisors is an integer number (2207465).

Almost surely, 2^12225942 is an apocalyptic number.

12225942 is an abundant number, since it is smaller than the sum of its proper divisors (14263638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12225942 is a wasteful number, since it uses less digits than its factorization.

12225942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679227 (or 679224 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12225942 is about 3496.5614537714. The cubic root of 12225942 is about 230.3708070290.

The spelling of 12225942 in words is "twelve million, two hundred twenty-five thousand, nine hundred forty-two".