12001002100109 has 4 divisors (see below), whose sum is σ = 13092002291040. Its totient is φ = 10910001909180.

The previous prime is 12001002100097. The next prime is 12001002100111. The reversal of 12001002100109 is 90100120010021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-12001002100109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001002120109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545500095449 + ... + 545500095470.

It is an arithmetic number, because the mean of its divisors is an integer number (3273000572760).

Almost surely, 2^{12001002100109} is an apocalyptic number.

It is an amenable number.

12001002100109 is a deficient number, since it is larger than the sum of its proper divisors (1091000190931).

12001002100109 is a wasteful number, since it uses less digits than its factorization.

12001002100109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091000190930.

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

The spelling of 12001002100109 in words is "twelve trillion, one billion, two million, one hundred thousand, one hundred nine".