12225404 has 12 divisors (see below), whose sum is σ = 21798504. Its totient is φ = 5997264.

The previous prime is 12225371. The next prime is 12225407. The reversal of 12225404 is 40452221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225407) 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, 28622 + ... + 29045.

It is an arithmetic number, because the mean of its divisors is an integer number (1816542).

Almost surely, 2^12225404 is an apocalyptic number.

It is an amenable number.

12225404 is a deficient number, since it is larger than the sum of its proper divisors (9573100).

12225404 is a wasteful number, since it uses less digits than its factorization.

12225404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57724 (or 57722 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 12225404 is about 3496.4845202003. The cubic root of 12225404 is about 230.3674278398.

Adding to 12225404 its reverse (40452221), we get a palindrome (52677625).

The spelling of 12225404 in words is "twelve million, two hundred twenty-five thousand, four hundred four".