2101210211 has 2 divisors, whose sum is σ = 2101210212. Its totient is φ = 2101210210.

The previous prime is 2101210207. The next prime is 2101210259. The reversal of 2101210211 is 1120121012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101210211 - 2² = 2101210207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101210192 and 2101210201.

It is not a weakly prime, because it can be changed into another prime (2101210711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050605105 + 1050605106.

It is an arithmetic number, because the mean of its divisors is an integer number (1050605106).

Almost surely, 2^2101210211 is an apocalyptic number.

2101210211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101210211 is an equidigital number, since it uses as much as digits as its factorization.

2101210211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2101210211 is about 45838.9595322581. The cubic root of 2101210211 is about 1280.8251131432.

Adding to 2101210211 its reverse (1120121012), we get a palindrome (3221331223).

The spelling of 2101210211 in words is "two billion, one hundred one million, two hundred ten thousand, two hundred eleven".