21021112000201 has 32 divisors (see below), whose sum is σ = 21441388953600. Its totient is φ = 20605393448640.

The previous prime is 21021112000151. The next prime is 21021112000223. The reversal of 21021112000201 is 10200021112012.

It is a cyclic number.

It is not a de Polignac number, because 21021112000201 - 2²¹ = 21021109903049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21021112000241) 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, 9647136130 + ... + 9647138308.

It is an arithmetic number, because the mean of its divisors is an integer number (670043404800).

Almost surely, 2^{21021112000201} is an apocalyptic number.

It is an amenable number.

21021112000201 is a deficient number, since it is larger than the sum of its proper divisors (420276953399).

21021112000201 is a wasteful number, since it uses less digits than its factorization.

21021112000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949.

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

Adding to 21021112000201 its reverse (10200021112012), we get a palindrome (31221133112213).

The spelling of 21021112000201 in words is "twenty-one trillion, twenty-one billion, one hundred twelve million, two hundred one", and thus it is an aban number.