12601715211 has 20 divisors (see below), whose sum is σ = 19815565000. Its totient is φ = 7958977056.

The previous prime is 12601715209. The next prime is 12601715219. The reversal of 12601715211 is 11251710621.

12601715211 is a `hidden beast` number, since 1 + 2 + 601 + 7 + 1 + 52 + 1 + 1 = 666.

It is not a de Polignac number, because 12601715211 - 2¹ = 12601715209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12601715219) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4092586 + ... + 4095663.

It is an arithmetic number, because the mean of its divisors is an integer number (990778250).

Almost surely, 2^12601715211 is an apocalyptic number.

12601715211 is a deficient number, since it is larger than the sum of its proper divisors (7213849789).

12601715211 is an equidigital number, since it uses as much as digits as its factorization.

12601715211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8188280 (or 8188271 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The spelling of 12601715211 in words is "twelve billion, six hundred one million, seven hundred fifteen thousand, two hundred eleven".