12102100999 has 2 divisors, whose sum is σ = 12102101000. Its totient is φ = 12102100998.

The previous prime is 12102100979. The next prime is 12102101009. The reversal of 12102100999 is 99900120121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12102100999 - 2¹¹ = 12102098951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102100909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051050499 + 6051050500.

It is an arithmetic number, because the mean of its divisors is an integer number (6051050500).

Almost surely, 2^12102100999 is an apocalyptic number.

12102100999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102100999 is an equidigital number, since it uses as much as digits as its factorization.

12102100999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 12102100999 in words is "twelve billion, one hundred two million, one hundred thousand, nine hundred ninety-nine".