12120522005 has 16 divisors (see below), whose sum is σ = 14609548800. Its totient is φ = 9653186688.

The previous prime is 12120521923. The next prime is 12120522019. The reversal of 12120522005 is 50022502121.

It is a happy number.

12120522005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12120522005 - 2³⁰ = 11046780181 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3973721 + ... + 3976769.

It is an arithmetic number, because the mean of its divisors is an integer number (913096800).

Almost surely, 2^12120522005 is an apocalyptic number.

It is an amenable number.

12120522005 is a deficient number, since it is larger than the sum of its proper divisors (2489026795).

12120522005 is a wasteful number, since it uses less digits than its factorization.

12120522005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6340.

The product of its (nonzero) digits is 400, while the sum is 20.

The spelling of 12120522005 in words is "twelve billion, one hundred twenty million, five hundred twenty-two thousand, five".