12271745147 has 2 divisors, whose sum is σ = 12271745148. Its totient is φ = 12271745146.

The previous prime is 12271745107. The next prime is 12271745173. The reversal of 12271745147 is 74154717221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12271745147 - 2²⁴ = 12254967931 is a prime.

It is not a weakly prime, because it can be changed into another prime (12271745107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6135872573 + 6135872574.

It is an arithmetic number, because the mean of its divisors is an integer number (6135872574).

Almost surely, 2^12271745147 is an apocalyptic number.

12271745147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12271745147 is an equidigital number, since it uses as much as digits as its factorization.

12271745147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109760, while the sum is 41.

It can be divided in two parts, 1227174 and 5147, that added together give a palindrome (1232321).

The spelling of 12271745147 in words is "twelve billion, two hundred seventy-one million, seven hundred forty-five thousand, one hundred forty-seven".