12122004399 has 4 divisors (see below), whose sum is σ = 16162672536. Its totient is φ = 8081336264.

The previous prime is 12122004353. The next prime is 12122004403. The reversal of 12122004399 is 99340022121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122004399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122004329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020334064 + ... + 2020334069.

It is an arithmetic number, because the mean of its divisors is an integer number (4040668134).

Almost surely, 2^12122004399 is an apocalyptic number.

12122004399 is a deficient number, since it is larger than the sum of its proper divisors (4040668137).

12122004399 is an equidigital number, since it uses as much as digits as its factorization.

12122004399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040668136.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 12122004399 in words is "twelve billion, one hundred twenty-two million, four thousand, three hundred ninety-nine".