12204278099 has 4 divisors (see below), whose sum is σ = 13143068736. Its totient is φ = 11265487464.

The previous prime is 12204278071. The next prime is 12204278117. The reversal of 12204278099 is 99087240221.

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 12204278099 - 2³² = 7909310803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12204272099) 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, 469395299 + ... + 469395324.

It is an arithmetic number, because the mean of its divisors is an integer number (3285767184).

Almost surely, 2^12204278099 is an apocalyptic number.

12204278099 is a deficient number, since it is larger than the sum of its proper divisors (938790637).

12204278099 is an equidigital number, since it uses as much as digits as its factorization.

12204278099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938790636.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 12204278099 in words is "twelve billion, two hundred four million, two hundred seventy-eight thousand, ninety-nine".