211200021020201 has 4 divisors (see below), whose sum is σ = 211230929854932. Its totient is φ = 211169112185472.

The previous prime is 211200021020189. The next prime is 211200021020243. The reversal of 211200021020201 is 102020120002112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106891281702976 + 104308739317225 = 10338824^2 + 10213165^2 .

It is a cyclic number.

It is not a de Polignac number, because 211200021020201 - 2⁶ = 211200021020137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211200021020291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15454407116 + ... + 15454420781.

It is an arithmetic number, because the mean of its divisors is an integer number (52807732463733).

Almost surely, 2^{211200021020201} is an apocalyptic number.

It is an amenable number.

211200021020201 is a deficient number, since it is larger than the sum of its proper divisors (30908834731).

211200021020201 is an equidigital number, since it uses as much as digits as its factorization.

211200021020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30908834730.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211200021020201 its reverse (102020120002112), we get a palindrome (313220141022313).

The spelling of 211200021020201 in words is "two hundred eleven trillion, two hundred billion, twenty-one million, twenty thousand, two hundred one".