100000111209 has 16 divisors (see below), whose sum is σ = 137665413120. Its totient is φ = 64501739280.

The previous prime is 100000111171. The next prime is 100000111243. The reversal of 100000111209 is 902111000001.

It is not a de Polignac number, because 100000111209 - 2²⁷ = 99865893481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100000111259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304632 + ... + 541110.

It is an arithmetic number, because the mean of its divisors is an integer number (8604088320).

Almost surely, 2^100000111209 is an apocalyptic number.

It is an amenable number.

100000111209 is a deficient number, since it is larger than the sum of its proper divisors (37665301911).

100000111209 is a wasteful number, since it uses less digits than its factorization.

100000111209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241060.

The product of its (nonzero) digits is 18, while the sum is 15.

The spelling of 100000111209 in words is "one hundred billion, one hundred eleven thousand, two hundred nine".