12100129999 has 2 divisors, whose sum is σ = 12100130000. Its totient is φ = 12100129998.

The previous prime is 12100129981. The next prime is 12100130023. The reversal of 12100129999 is 99992100121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12100129999 - 2⁷ = 12100129871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100129199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050064999 + 6050065000.

It is an arithmetic number, because the mean of its divisors is an integer number (6050065000).

Almost surely, 2^12100129999 is an apocalyptic number.

12100129999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100129999 is an equidigital number, since it uses as much as digits as its factorization.

12100129999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 43.

The spelling of 12100129999 in words is "twelve billion, one hundred million, one hundred twenty-nine thousand, nine hundred ninety-nine".