12002100109 has 8 divisors (see below), whose sum is σ = 12718795320. Its totient is φ = 11305593600.

The previous prime is 12002100083. The next prime is 12002100137. The reversal of 12002100109 is 90100120021.

It can be written as a sum of positive squares in 4 ways, for example, as 14040009 + 11988060100 = 3747^2 + 109490^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12002100109 - 2⁹ = 12002099597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12002100092 and 12002100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002100169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5045952 + ... + 5048329.

It is an arithmetic number, because the mean of its divisors is an integer number (1589849415).

Almost surely, 2^12002100109 is an apocalyptic number.

It is an amenable number.

12002100109 is a deficient number, since it is larger than the sum of its proper divisors (716695211).

12002100109 is a wasteful number, since it uses less digits than its factorization.

12002100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094351.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 12002100109 in words is "twelve billion, two million, one hundred thousand, one hundred nine".