12355000505121 has 16 divisors (see below), whose sum is σ = 17004826542080. Its totient is φ = 7970923694160.

The previous prime is 12355000505087. The next prime is 12355000505147. The reversal of 12355000505121 is 12150500055321.

It is not a de Polignac number, because 12355000505121 - 2²² = 12354996310817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12355000505171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28374270 + ... + 28806408.

It is an arithmetic number, because the mean of its divisors is an integer number (1062801658880).

Almost surely, 2^{12355000505121} is an apocalyptic number.

It is an amenable number.

12355000505121 is a deficient number, since it is larger than the sum of its proper divisors (4649826036959).

12355000505121 is a wasteful number, since it uses less digits than its factorization.

12355000505121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739596.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 12355000505121 in words is "twelve trillion, three hundred fifty-five billion, five hundred five thousand, one hundred twenty-one".