12156602211 has 24 divisors (see below), whose sum is σ = 19905551120. Its totient is φ = 7087248576.

The previous prime is 12156602203. The next prime is 12156602219. The reversal of 12156602211 is 11220665121.

12156602211 is a `hidden beast` number, since 1 + 2 + 1 + 56 + 602 + 2 + 1 + 1 = 666.

12156602211 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 (12156602203) and next prime (12156602219).

It is not a de Polignac number, because 12156602211 - 2³ = 12156602203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12156602219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2732056 + ... + 2736501.

Almost surely, 2^12156602211 is an apocalyptic number.

12156602211 is a deficient number, since it is larger than the sum of its proper divisors (7748948909).

12156602211 is a wasteful number, since it uses less digits than its factorization.

12156602211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468595 (or 5468592 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 12156602211 in words is "twelve billion, one hundred fifty-six million, six hundred two thousand, two hundred eleven".