12099999187 has 2 divisors, whose sum is σ = 12099999188. Its totient is φ = 12099999186.

The previous prime is 12099999181. The next prime is 12099999193. The reversal of 12099999187 is 78199999021.

It is a balanced prime because it is at equal distance from previous prime (12099999181) and next prime (12099999193).

It is a cyclic number.

It is not a de Polignac number, because 12099999187 - 2⁷ = 12099999059 is a prime.

It is not a weakly prime, because it can be changed into another prime (12099999181) 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 as a sum of consecutive naturals, namely, 6049999593 + 6049999594.

It is an arithmetic number, because the mean of its divisors is an integer number (6049999594).

Almost surely, 2^12099999187 is an apocalyptic number.

12099999187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12099999187 is an equidigital number, since it uses as much as digits as its factorization.

12099999187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488, while the sum is 64.

The spelling of 12099999187 in words is "twelve billion, ninety-nine million, nine hundred ninety-nine thousand, one hundred eighty-seven".