12262508197 has 4 divisors (see below), whose sum is σ = 12278622636. Its totient is φ = 12246393760.

The previous prime is 12262508177. The next prime is 12262508207. The reversal of 12262508197 is 79180526221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79180526221 = 17 ⋅4657678013.

It can be written as a sum of positive squares in 2 ways, for example, as 1938728961 + 10323779236 = 44031^2 + 101606^2 .

It is a cyclic number.

It is not a de Polignac number, because 12262508197 - 2¹⁵ = 12262475429 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 (12262508117) 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, 8056078 + ... + 8057599.

It is an arithmetic number, because the mean of its divisors is an integer number (3069655659).

Almost surely, 2^12262508197 is an apocalyptic number.

It is an amenable number.

12262508197 is a deficient number, since it is larger than the sum of its proper divisors (16114439).

12262508197 is an equidigital number, since it uses as much as digits as its factorization.

12262508197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16114438.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 12262508197 in words is "twelve billion, two hundred sixty-two million, five hundred eight thousand, one hundred ninety-seven".