12101011999 has 2 divisors, whose sum is σ = 12101012000. Its totient is φ = 12101011998.

The previous prime is 12101011889. The next prime is 12101012009. The reversal of 12101011999 is 99911010121.

12101011999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12101011999 - 2¹³ = 12101003807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101011199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050505999 + 6050506000.

It is an arithmetic number, because the mean of its divisors is an integer number (6050506000).

Almost surely, 2^12101011999 is an apocalyptic number.

12101011999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101011999 is an equidigital number, since it uses as much as digits as its factorization.

12101011999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 34.

The spelling of 12101011999 in words is "twelve billion, one hundred one million, eleven thousand, nine hundred ninety-nine".