12198575099 has 4 divisors (see below), whose sum is σ = 12482262936. Its totient is φ = 11914887264.

The previous prime is 12198575089. The next prime is 12198575117. The reversal of 12198575099 is 99057589121.

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 12198575099 - 2⁴ = 12198575083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12198575009) 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, 141843854 + ... + 141843939.

It is an arithmetic number, because the mean of its divisors is an integer number (3120565734).

Almost surely, 2^12198575099 is an apocalyptic number.

12198575099 is a deficient number, since it is larger than the sum of its proper divisors (283687837).

12198575099 is an equidigital number, since it uses as much as digits as its factorization.

12198575099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283687836.

The product of its (nonzero) digits is 2041200, while the sum is 56.

The spelling of 12198575099 in words is "twelve billion, one hundred ninety-eight million, five hundred seventy-five thousand, ninety-nine".