12276570217 has 4 divisors (see below), whose sum is σ = 12431969920. Its totient is φ = 12121170516.

The previous prime is 12276570193. The next prime is 12276570221. The reversal of 12276570217 is 71207567221.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12276570217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12276570217.

It is not an unprimeable number, because it can be changed into a prime (12276570227) 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, 77699733 + ... + 77699890.

It is an arithmetic number, because the mean of its divisors is an integer number (3107992480).

Almost surely, 2^12276570217 is an apocalyptic number.

It is an amenable number.

12276570217 is a deficient number, since it is larger than the sum of its proper divisors (155399703).

12276570217 is an equidigital number, since it uses as much as digits as its factorization.

12276570217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155399702.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 12276570217 in words is "twelve billion, two hundred seventy-six million, five hundred seventy thousand, two hundred seventeen".