12272547171 has 16 divisors (see below), whose sum is σ = 16411449600. Its totient is φ = 8157708768.

The previous prime is 12272547169. The next prime is 12272547181. The reversal of 12272547171 is 17174527221.

It is a happy number.

It is not a de Polignac number, because 12272547171 - 2¹ = 12272547169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12272547101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554085 + ... + 1561961.

It is an arithmetic number, because the mean of its divisors is an integer number (1025715600).

Almost surely, 2^12272547171 is an apocalyptic number.

12272547171 is a deficient number, since it is larger than the sum of its proper divisors (4138902429).

12272547171 is an equidigital number, since it uses as much as digits as its factorization.

12272547171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9338.

The product of its digits is 54880, while the sum is 39.

The spelling of 12272547171 in words is "twelve billion, two hundred seventy-two million, five hundred forty-seven thousand, one hundred seventy-one".