12641224 has 16 divisors (see below), whose sum is σ = 23742720. Its totient is φ = 6309840.

The previous prime is 12641203. The next prime is 12641249. The reversal of 12641224 is 42214621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12641195 and 12641204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5989 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (1483920).

Almost surely, 2^12641224 is an apocalyptic number.

It is an amenable number.

12641224 is a deficient number, since it is larger than the sum of its proper divisors (11101496).

12641224 is a wasteful number, since it uses less digits than its factorization.

12641224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700 (or 2696 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 12641224 is about 3555.4499012080. The cubic root of 12641224 is about 232.9501756948.

Adding to 12641224 its reverse (42214621), we get a palindrome (54855845).

The spelling of 12641224 in words is "twelve million, six hundred forty-one thousand, two hundred twenty-four".