12001020206 has 16 divisors (see below), whose sum is σ = 20620701024. Its totient is φ = 5131413504.

The previous prime is 12001020191. The next prime is 12001020259. The reversal of 12001020206 is 60202010021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983795 + ... + 995918.

It is an arithmetic number, because the mean of its divisors is an integer number (1288793814).

Almost surely, 2^12001020206 is an apocalyptic number.

12001020206 is a deficient number, since it is larger than the sum of its proper divisors (8619680818).

12001020206 is a wasteful number, since it uses less digits than its factorization.

12001020206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980155.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12001020206 its reverse (60202010021), we get a palindrome (72203030227).

The spelling of 12001020206 in words is "twelve billion, one million, twenty thousand, two hundred six".