211021120201 has 2 divisors, whose sum is σ = 211021120202. Its totient is φ = 211021120200.

The previous prime is 211021120183. The next prime is 211021120213. The reversal of 211021120201 is 102021120112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185317335225 + 25703784976 = 430485^2 + 160324^2 .

It is a cyclic number.

It is not a de Polignac number, because 211021120201 - 2¹¹ = 211021118153 is a prime.

It is not a weakly prime, because it can be changed into another prime (211021120301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510560100 + 105510560101.

It is an arithmetic number, because the mean of its divisors is an integer number (105510560101).

Almost surely, 2^211021120201 is an apocalyptic number.

It is an amenable number.

211021120201 is a deficient number, since it is larger than the sum of its proper divisors (1).

211021120201 is an equidigital number, since it uses as much as digits as its factorization.

211021120201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 211021120201 its reverse (102021120112), we get a palindrome (313042240313).

The spelling of 211021120201 in words is "two hundred eleven billion, twenty-one million, one hundred twenty thousand, two hundred one".