111000122009 has 16 divisors (see below), whose sum is σ = 131238043776. Its totient is φ = 91903344000.

The previous prime is 111000121951. The next prime is 111000122027. The reversal of 111000122009 is 900221000111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000122009 is a prime.

It is a super-3 number, since 3×111000122009³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (111000122029) 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, 1885667 + ... + 1943640.

It is an arithmetic number, because the mean of its divisors is an integer number (8202377736).

Almost surely, 2^111000122009 is an apocalyptic number.

It is an amenable number.

111000122009 is a deficient number, since it is larger than the sum of its proper divisors (20237921767).

111000122009 is a wasteful number, since it uses less digits than its factorization.

111000122009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829456.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 111000122009 in words is "one hundred eleven billion, one hundred twenty-two thousand, nine".