12225446 has 4 divisors (see below), whose sum is σ = 18338172. Its totient is φ = 6112722.

The previous prime is 12225427. The next prime is 12225461. The reversal of 12225446 is 64452221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64452221 = 809 ⋅79669.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 3056360 + ... + 3056363.

It is an arithmetic number, because the mean of its divisors is an integer number (4584543).

Almost surely, 2^12225446 is an apocalyptic number.

12225446 is a deficient number, since it is larger than the sum of its proper divisors (6112726).

12225446 is an equidigital number, since it uses as much as digits as its factorization.

12225446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112725.

The product of its digits is 3840, while the sum is 26.

The square root of 12225446 is about 3496.4905262277. The cubic root of 12225446 is about 230.3676916462.

Adding to 12225446 its reverse (64452221), we get a palindrome (76677667).

The spelling of 12225446 in words is "twelve million, two hundred twenty-five thousand, four hundred forty-six".