12000209844 has 24 divisors (see below), whose sum is σ = 32000559808. Its totient is φ = 3428631360.

The previous prime is 12000209743. The next prime is 12000209863. The reversal of 12000209844 is 44890200021.

12000209844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71429737 + ... + 71429904.

Almost surely, 2^12000209844 is an apocalyptic number.

12000209844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12000209844 is an abundant number, since it is smaller than the sum of its proper divisors (20000349964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000209844 is a wasteful number, since it uses less digits than its factorization.

12000209844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142859655 (or 142859653 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 12000209844 its reverse (44890200021), we get a palindrome (56890409865).

The spelling of 12000209844 in words is "twelve billion, two hundred nine thousand, eight hundred forty-four".