12501224 has 8 divisors (see below), whose sum is σ = 23439810. Its totient is φ = 6250608.

The previous prime is 12501193. The next prime is 12501257. The reversal of 12501224 is 42210521.

12501224 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 only one way, i.e., 9672100 + 2829124 = 3110^2 + 1682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781319 + ... + 781334.

Almost surely, 2^12501224 is an apocalyptic number.

It is an amenable number.

12501224 is a deficient number, since it is larger than the sum of its proper divisors (10938586).

12501224 is a wasteful number, since it uses less digits than its factorization.

12501224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562659 (or 1562655 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12501224 is about 3535.7070014355. The cubic root of 12501224 is about 232.0870165064.

Adding to 12501224 its reverse (42210521), we get a palindrome (54711745).

The spelling of 12501224 in words is "twelve million, five hundred one thousand, two hundred twenty-four".