100111121210999 has 8 divisors (see below), whose sum is σ = 100434446464608. Its totient is φ = 99787843236640.

The previous prime is 100111121210977. The next prime is 100111121211029. The reversal of 100111121210999 is 999012121111001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100111121210999 - 2²⁴ = 100111104433783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111121210909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7575632 + ... + 16050309.

It is an arithmetic number, because the mean of its divisors is an integer number (12554305808076).

Almost surely, 2^{100111121210999} is an apocalyptic number.

100111121210999 is a deficient number, since it is larger than the sum of its proper divisors (323325253609).

100111121210999 is a wasteful number, since it uses less digits than its factorization.

100111121210999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23639625.

The product of its (nonzero) digits is 2916, while the sum is 38.

The spelling of 100111121210999 in words is "one hundred trillion, one hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, nine hundred ninety-nine".