2121010211 has 2 divisors, whose sum is σ = 2121010212. Its totient is φ = 2121010210.

The previous prime is 2121010189. The next prime is 2121010247. The reversal of 2121010211 is 1120101212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121010211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121010192 and 2121010201.

It is not a weakly prime, because it can be changed into another prime (2121010271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060505105 + 1060505106.

It is an arithmetic number, because the mean of its divisors is an integer number (1060505106).

Almost surely, 2^2121010211 is an apocalyptic number.

2121010211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121010211 is an equidigital number, since it uses as much as digits as its factorization.

2121010211 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2121010211 is about 46054.4266167759. The cubic root of 2121010211 is about 1284.8356739002.

Adding to 2121010211 its reverse (1120101212), we get a palindrome (3241111423).

The spelling of 2121010211 in words is "two billion, one hundred twenty-one million, ten thousand, two hundred eleven".