122100002112009 has 16 divisors (see below), whose sum is σ = 163389720331712. Its totient is φ = 81105364274688.

The previous prime is 122100002111963. The next prime is 122100002112037. The reversal of 122100002112009 is 900211200001221.

It is not a de Polignac number, because 122100002112009 - 2⁸ = 122100002111753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122100002112409) 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, 25497904 + ... + 29905569.

It is an arithmetic number, because the mean of its divisors is an integer number (10211857520732).

Almost surely, 2^{122100002112009} is an apocalyptic number.

It is an amenable number.

122100002112009 is a deficient number, since it is larger than the sum of its proper divisors (41289718219703).

122100002112009 is a wasteful number, since it uses less digits than its factorization.

122100002112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55406136.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 122100002112009 in words is "one hundred twenty-two trillion, one hundred billion, two million, one hundred twelve thousand, nine".