2101211 has 16 divisors (see below), whose sum is σ = 2592768. Its totient is φ = 1663200.

The previous prime is 2101207. The next prime is 2101213. The reversal of 2101211 is 1121012.

2101211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2101211 - 2² = 2101207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4781 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (162048).

2^2101211 is an apocalyptic number.

2101211 is a deficient number, since it is larger than the sum of its proper divisors (491557).

2101211 is a wasteful number, since it uses less digits than its factorization.

2101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 2101211 is about 1449.5554490947. Note that the first 3 decimals coincide. The cubic root of 2101211 is about 128.0825273459.

Adding to 2101211 its reverse (1121012), we get a palindrome (3222223).

It can be divided in two parts, 21012 and 11, that multiplied together give a palindrome (231132).

The spelling of 2101211 in words is "two million, one hundred one thousand, two hundred eleven".