12199656 has 32 divisors (see below), whose sum is σ = 34856640. Its totient is φ = 3485568.

The previous prime is 12199643. The next prime is 12199669. The reversal of 12199656 is 65699121.

12199656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12199643) and next prime (12199669).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36141 + ... + 36476.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^12199656 is an apocalyptic number.

It is an amenable number.

12199656 is an abundant number, since it is smaller than the sum of its proper divisors (22656984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12199656 is a wasteful number, since it uses less digits than its factorization.

12199656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72633 (or 72629 counting only the distinct ones).

The product of its digits is 29160, while the sum is 39.

The square root of 12199656 is about 3492.8005955107. The cubic root of 12199656 is about 230.2055880747.

The spelling of 12199656 in words is "twelve million, one hundred ninety-nine thousand, six hundred fifty-six".