12122470187 has 4 divisors (see below), whose sum is σ = 12159094296. Its totient is φ = 12085846080.

The previous prime is 12122470181. The next prime is 12122470249. The reversal of 12122470187 is 78107422121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78107422121 = 264263 ⋅295567.

It is a cyclic number.

It is not a de Polignac number, because 12122470187 - 2¹² = 12122466091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122470181) 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, 18311558 + ... + 18312219.

It is an arithmetic number, because the mean of its divisors is an integer number (3039773574).

Almost surely, 2^12122470187 is an apocalyptic number.

12122470187 is a deficient number, since it is larger than the sum of its proper divisors (36624109).

12122470187 is an equidigital number, since it uses as much as digits as its factorization.

12122470187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36624108.

The product of its (nonzero) digits is 12544, while the sum is 35.

The spelling of 12122470187 in words is "twelve billion, one hundred twenty-two million, four hundred seventy thousand, one hundred eighty-seven".