12156265101 has 8 divisors (see below), whose sum is σ = 16236741664. Its totient is φ = 8089982640.

The previous prime is 12156265061. The next prime is 12156265139. The reversal of 12156265101 is 10156265121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12156265101 - 2⁷ = 12156264973 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 (12156265181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546526 + ... + 3549951.

It is an arithmetic number, because the mean of its divisors is an integer number (2029592708).

Almost surely, 2^12156265101 is an apocalyptic number.

It is an amenable number.

12156265101 is a deficient number, since it is larger than the sum of its proper divisors (4080476563).

12156265101 is an equidigital number, since it uses as much as digits as its factorization.

12156265101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097051.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 12156265101 in words is "twelve billion, one hundred fifty-six million, two hundred sixty-five thousand, one hundred one".