201021120211 has 2 divisors, whose sum is σ = 201021120212. Its totient is φ = 201021120210.

The previous prime is 201021120203. The next prime is 201021120227. The reversal of 201021120211 is 112021120102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201021120211 - 2³ = 201021120203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201021120191 and 201021120200.

It is not a weakly prime, because it can be changed into another prime (201021120511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510560105 + 100510560106.

It is an arithmetic number, because the mean of its divisors is an integer number (100510560106).

Almost surely, 2^201021120211 is an apocalyptic number.

201021120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021120211 is an equidigital number, since it uses as much as digits as its factorization.

201021120211 is an evil number, because the sum of its binary digits is even.

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

Adding to 201021120211 its reverse (112021120102), we get a palindrome (313042240313).

It can be divided in two parts, 20102 and 1120211, that multiplied together give a palindrome (22518481522).

The spelling of 201021120211 in words is "two hundred one billion, twenty-one million, one hundred twenty thousand, two hundred eleven".