12912257701 has 4 divisors (see below), whose sum is σ = 14756865952. Its totient is φ = 11067649452.

The previous prime is 12912257693. The next prime is 12912257713. The reversal of 12912257701 is 10775221921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10775221921 = 251 ⋅42929171.

It is a cyclic number.

It is not a de Polignac number, because 12912257701 - 2³ = 12912257693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12912252701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922304115 + ... + 922304128.

It is an arithmetic number, because the mean of its divisors is an integer number (3689216488).

Almost surely, 2^12912257701 is an apocalyptic number.

It is an amenable number.

12912257701 is a deficient number, since it is larger than the sum of its proper divisors (1844608251).

12912257701 is an equidigital number, since it uses as much as digits as its factorization.

12912257701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844608250.

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 12912257701 in words is "twelve billion, nine hundred twelve million, two hundred fifty-seven thousand, seven hundred one".