12500505227911 has 2 divisors, whose sum is σ = 12500505227912. Its totient is φ = 12500505227910.

The previous prime is 12500505227887. The next prime is 12500505228017. The reversal of 12500505227911 is 11972250500521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12500505227911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500505227411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250252613955 + 6250252613956.

It is an arithmetic number, because the mean of its divisors is an integer number (6250252613956).

Almost surely, 2^{12500505227911} is an apocalyptic number.

12500505227911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500505227911 is an equidigital number, since it uses as much as digits as its factorization.

12500505227911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 12500505227911 in words is "twelve trillion, five hundred billion, five hundred five million, two hundred twenty-seven thousand, nine hundred eleven".