12000200021 has 16 divisors (see below), whose sum is σ = 12756528000. Its totient is φ = 11264708928.

The previous prime is 12000199979. The next prime is 12000200027.

12000200021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12000200021 - 2¹⁸ = 11999937877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000199981 and 12000200008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000200027) 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, 400055 + ... + 429003.

It is an arithmetic number, because the mean of its divisors is an integer number (797283000).

Almost surely, 2^12000200021 is an apocalyptic number.

It is an amenable number.

12000200021 is a deficient number, since it is larger than the sum of its proper divisors (756327979).

12000200021 is a wasteful number, since it uses less digits than its factorization.

12000200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29308.

The product of its (nonzero) digits is 8, while the sum is 8.

The spelling of 12000200021 in words is "twelve billion, two hundred thousand, twenty-one".