10101111009999 has 16 divisors (see below), whose sum is σ = 13726280425440. Its totient is φ = 6606231177600.

The previous prime is 10101111009967. The next prime is 10101111010009. The reversal of 10101111009999 is 99990011110101.

It is not a de Polignac number, because 10101111009999 - 2⁵ = 10101111009967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10101111009999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101111001999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152888992 + ... + 152955045.

It is an arithmetic number, because the mean of its divisors is an integer number (857892526590).

Almost surely, 2^{10101111009999} is an apocalyptic number.

10101111009999 is a deficient number, since it is larger than the sum of its proper divisors (3625169415441).

10101111009999 is a wasteful number, since it uses less digits than its factorization.

10101111009999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305844250.

The product of its (nonzero) digits is 6561, while the sum is 42.

The spelling of 10101111009999 in words is "ten trillion, one hundred one billion, one hundred eleven million, nine thousand, nine hundred ninety-nine".