100021120099 has 2 divisors, whose sum is σ = 100021120100. Its totient is φ = 100021120098.

The previous prime is 100021120079. The next prime is 100021120169. The reversal of 100021120099 is 990021120001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100021120099 - 2²⁹ = 99484249187 is a prime.

It is a super-3 number, since 3×100021120099³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (100021120079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010560049 + 50010560050.

It is an arithmetic number, because the mean of its divisors is an integer number (50010560050).

Almost surely, 2^100021120099 is an apocalyptic number.

100021120099 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021120099 is an equidigital number, since it uses as much as digits as its factorization.

100021120099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 100021120099 in words is "one hundred billion, twenty-one million, one hundred twenty thousand, ninety-nine".