12063636021 has 32 divisors (see below), whose sum is σ = 16758403200. Its totient is φ = 7709829120.

The previous prime is 12063635989. The next prime is 12063636043.

12063636021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12063636021 - 2⁵ = 12063635989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12063636021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12063636061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9581290 + ... + 9582548.

It is an arithmetic number, because the mean of its divisors is an integer number (523700100).

Almost surely, 2^12063636021 is an apocalyptic number.

It is an amenable number.

12063636021 is a deficient number, since it is larger than the sum of its proper divisors (4694767179).

12063636021 is a wasteful number, since it uses less digits than its factorization.

12063636021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 12063636021 in words is "twelve billion, sixty-three million, six hundred thirty-six thousand, twenty-one".