201020212101211 has 4 divisors (see below), whose sum is σ = 201027352913424. Its totient is φ = 201013071289000.

The previous prime is 201020212101143. The next prime is 201020212101223. The reversal of 201020212101211 is 112101212020102.

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

It is a cyclic number.

It is not a de Polignac number, because 201020212101211 - 2⁹ = 201020212100699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020212101271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3570363880 + ... + 3570420181.

It is an arithmetic number, because the mean of its divisors is an integer number (50256838228356).

Almost surely, 2^{201020212101211} is an apocalyptic number.

201020212101211 is a deficient number, since it is larger than the sum of its proper divisors (7140812213).

201020212101211 is an equidigital number, since it uses as much as digits as its factorization.

201020212101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140812212.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201020212101211 its reverse (112101212020102), we get a palindrome (313121424121313).

The spelling of 201020212101211 in words is "two hundred one trillion, twenty billion, two hundred twelve million, one hundred one thousand, two hundred eleven".