12506002643121 has 16 divisors (see below), whose sum is σ = 17981058884544. Its totient is φ = 7685835159744.

The previous prime is 12506002643111. The next prime is 12506002643129. The reversal of 12506002643121 is 12134620060521.

It is not a de Polignac number, because 12506002643121 - 2¹⁷ = 12506002512049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12506002643129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211771491 + ... + 211830536.

It is an arithmetic number, because the mean of its divisors is an integer number (1123816180284).

Almost surely, 2^{12506002643121} is an apocalyptic number.

It is an amenable number.

12506002643121 is a deficient number, since it is larger than the sum of its proper divisors (5475056241423).

12506002643121 is a wasteful number, since it uses less digits than its factorization.

12506002643121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423602800.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 12506002643121 in words is "twelve trillion, five hundred six billion, two million, six hundred forty-three thousand, one hundred twenty-one".