12247177099 has 4 divisors (see below), whose sum is σ = 12642247360. Its totient is φ = 11852106840.

The previous prime is 12247177097. The next prime is 12247177123. The reversal of 12247177099 is 99077174221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12247177099 - 2¹ = 12247177097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12247177097) 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, 197535084 + ... + 197535145.

It is an arithmetic number, because the mean of its divisors is an integer number (3160561840).

Almost surely, 2^12247177099 is an apocalyptic number.

12247177099 is a deficient number, since it is larger than the sum of its proper divisors (395070261).

12247177099 is an equidigital number, since it uses as much as digits as its factorization.

12247177099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395070260.

The product of its (nonzero) digits is 444528, while the sum is 49.

The spelling of 12247177099 in words is "twelve billion, two hundred forty-seven million, one hundred seventy-seven thousand, ninety-nine".