12247135591 has 12 divisors (see below), whose sum is σ = 12525086080. Its totient is φ = 11975231520.

The previous prime is 12247135567. The next prime is 12247135651. The reversal of 12247135591 is 19553174221.

It is not a de Polignac number, because 12247135591 - 2¹⁷ = 12247004519 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 (12247130591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3247555 + ... + 3251323.

Almost surely, 2^12247135591 is an apocalyptic number.

12247135591 is a deficient number, since it is larger than the sum of its proper divisors (277950489).

12247135591 is an equidigital number, since it uses as much as digits as its factorization.

12247135591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334 (or 5287 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The spelling of 12247135591 in words is "twelve billion, two hundred forty-seven million, one hundred thirty-five thousand, five hundred ninety-one".