21112000200001 has 32 divisors (see below), whose sum is σ = 21488935308192. Its totient is φ = 20739283353600.

The previous prime is 21112000199989. The next prime is 21112000200007. The reversal of 21112000200001 is 10000200021112.

It can be written as a sum of positive squares in 16 ways, for example, as 46874415025 + 21065125784976 = 216505^2 + 4589676^2 .

It is a cyclic number.

It is not a de Polignac number, because 21112000200001 - 2³⁹ = 20562244386113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112000200007) 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, 13186757601 + ... + 13186759201.

It is an arithmetic number, because the mean of its divisors is an integer number (671529228381).

Almost surely, 2^{21112000200001} is an apocalyptic number.

It is an amenable number.

21112000200001 is a deficient number, since it is larger than the sum of its proper divisors (376935108191).

21112000200001 is a wasteful number, since it uses less digits than its factorization.

21112000200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21112000200001 its reverse (10000200021112), we get a palindrome (31112200221113).

The spelling of 21112000200001 in words is "twenty-one trillion, one hundred twelve billion, two hundred thousand, one".