12213748 has 12 divisors (see below), whose sum is σ = 21400960. Its totient is φ = 6099192.

The previous prime is 12213739. The next prime is 12213779. The reversal of 12213748 is 84731221.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 3133 + ... + 5851.

Almost surely, 2^12213748 is an apocalyptic number.

It is an amenable number.

12213748 is a deficient number, since it is larger than the sum of its proper divisors (9187212).

12213748 is a wasteful number, since it uses less digits than its factorization.

12213748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846 (or 3844 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 12213748 is about 3494.8173056685. The cubic root of 12213748 is about 230.2941919081.

Adding to 12213748 its reverse (84731221), we get a palindrome (96944969).

The spelling of 12213748 in words is "twelve million, two hundred thirteen thousand, seven hundred forty-eight".