2102101211 has 16 divisors (see below), whose sum is σ = 2481292224. Its totient is φ = 1743565824.

The previous prime is 2102101117. The next prime is 2102101213. The reversal of 2102101211 is 1121012012.

It is not a de Polignac number, because 2102101211 - 2²⁶ = 2034992347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102101192 and 2102101201.

It is not an unprimeable number, because it can be changed into a prime (2102101213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11726 + ... + 65891.

It is an arithmetic number, because the mean of its divisors is an integer number (155080764).

Almost surely, 2^2102101211 is an apocalyptic number.

2102101211 is a deficient number, since it is larger than the sum of its proper divisors (379191013).

2102101211 is an equidigital number, since it uses as much as digits as its factorization.

2102101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77750.

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

The square root of 2102101211 is about 45848.6773091656. The cubic root of 2102101211 is about 1281.0061284933.

Adding to 2102101211 its reverse (1121012012), we get a palindrome (3223113223).

The spelling of 2102101211 in words is "two billion, one hundred two million, one hundred one thousand, two hundred eleven".