2113211 has 2 divisors, whose sum is σ = 2113212. Its totient is φ = 2113210.

The previous prime is 2113207. The next prime is 2113229. The reversal of 2113211 is 1123112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2113211 - 2² = 2113207 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2113192 and 2113201.

It is not a weakly prime, because it can be changed into another prime (2113291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056605 + 1056606.

It is an arithmetic number, because the mean of its divisors is an integer number (1056606).

2^2113211 is an apocalyptic number.

2113211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113211 is an equidigital number, since it uses as much as digits as its factorization.

2113211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12, while the sum is 11.

The square root of 2113211 is about 1453.6887562336. The cubic root of 2113211 is about 128.3258907623.

Adding to 2113211 its reverse (1123112), we get a palindrome (3236323).

Subtracting from 2113211 its reverse (1123112), we obtain a palindrome (990099).

The spelling of 2113211 in words is "two million, one hundred thirteen thousand, two hundred eleven".