12111120899 has 2 divisors, whose sum is σ = 12111120900. Its totient is φ = 12111120898.

The previous prime is 12111120883. The next prime is 12111120919. The reversal of 12111120899 is 99802111121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12111120899 - 2⁴ = 12111120883 is a prime.

It is not a weakly prime, because it can be changed into another prime (12111150899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055560449 + 6055560450.

It is an arithmetic number, because the mean of its divisors is an integer number (6055560450).

Almost surely, 2^12111120899 is an apocalyptic number.

12111120899 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111120899 is an equidigital number, since it uses as much as digits as its factorization.

12111120899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 12111120899 in words is "twelve billion, one hundred eleven million, one hundred twenty thousand, eight hundred ninety-nine".