12001112200021 has 16 divisors (see below), whose sum is σ = 13844146337280. Its totient is φ = 10190231097840.

The previous prime is 12001112199997. The next prime is 12001112200157. The reversal of 12001112200021 is 12000221110021.

12001112200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12001112200021 - 2⁹ = 12001112199509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001112199974 and 12001112200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001112600021) 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, 27444390 + ... + 27878248.

It is an arithmetic number, because the mean of its divisors is an integer number (865259146080).

Almost surely, 2^{12001112200021} is an apocalyptic number.

It is an amenable number.

12001112200021 is a deficient number, since it is larger than the sum of its proper divisors (1843034137259).

12001112200021 is a wasteful number, since it uses less digits than its factorization.

12001112200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470904.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001112200021 its reverse (12000221110021), we get a palindrome (24001333310042).

The spelling of 12001112200021 in words is "twelve trillion, one billion, one hundred twelve million, two hundred thousand, twenty-one".