121112000109 has 24 divisors (see below), whose sum is σ = 175318572000. Its totient is φ = 80566526880.

The previous prime is 121112000101. The next prime is 121112000111. The reversal of 121112000109 is 901000211121.

It is a happy number.

It is not a de Polignac number, because 121112000109 - 2³ = 121112000101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121112000091 and 121112000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112000101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22346802 + ... + 22352220.

It is an arithmetic number, because the mean of its divisors is an integer number (7304940500).

Almost surely, 2^121112000109 is an apocalyptic number.

It is an amenable number.

121112000109 is a deficient number, since it is larger than the sum of its proper divisors (54206571891).

121112000109 is a wasteful number, since it uses less digits than its factorization.

121112000109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10345 (or 10342 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 121112000109 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred nine", and thus it is an aban number.