12694227371 has 4 divisors (see below), whose sum is σ = 14507688432. Its totient is φ = 10880766312.

The previous prime is 12694227353. The next prime is 12694227379. The reversal of 12694227371 is 17372249621.

12694227371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17372249621 = 84859 ⋅204719.

It is a cyclic number.

It is not a de Polignac number, because 12694227371 - 2²² = 12690033067 is a prime.

It is a super-2 number, since 2×12694227371² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12694227379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906730520 + ... + 906730533.

It is an arithmetic number, because the mean of its divisors is an integer number (3626922108).

Almost surely, 2^12694227371 is an apocalyptic number.

12694227371 is a deficient number, since it is larger than the sum of its proper divisors (1813461061).

12694227371 is an equidigital number, since it uses as much as digits as its factorization.

12694227371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813461060.

The product of its digits is 254016, while the sum is 44.

The spelling of 12694227371 in words is "twelve billion, six hundred ninety-four million, two hundred twenty-seven thousand, three hundred seventy-one".