12102011999 has 16 divisors (see below), whose sum is σ = 15409253376. Its totient is φ = 9229495200.

The previous prime is 12102011989. The next prime is 12102012023. The reversal of 12102011999 is 99911020121.

12102011999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12102011999 - 2¹⁶ = 12101946463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102011939) 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 in 15 ways as a sum of consecutive naturals, for example, 1668392 + ... + 1675629.

It is an arithmetic number, because the mean of its divisors is an integer number (963078336).

Almost surely, 2^12102011999 is an apocalyptic number.

12102011999 is a deficient number, since it is larger than the sum of its proper divisors (3307241377).

12102011999 is a wasteful number, since it uses less digits than its factorization.

12102011999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344086.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 12102011999 in words is "twelve billion, one hundred two million, eleven thousand, nine hundred ninety-nine".