2212271 has 2 divisors, whose sum is σ = 2212272. Its totient is φ = 2212270.

The previous prime is 2212247. The next prime is 2212277. The reversal of 2212271 is 1722122.

2212271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212277) 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 as a sum of consecutive naturals, namely, 1106135 + 1106136.

It is an arithmetic number, because the mean of its divisors is an integer number (1106136).

2^2212271 is an apocalyptic number.

2212271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212271 is an equidigital number, since it uses as much as digits as its factorization.

2212271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112, while the sum is 17.

The square root of 2212271 is about 1487.3704985645. The cubic root of 2212271 is about 130.3005079664.

Adding to 2212271 its reverse (1722122), we get a palindrome (3934393).

It can be divided in two parts, 22 and 12271, that multiplied together give a palindrome (269962).

The spelling of 2212271 in words is "two million, two hundred twelve thousand, two hundred seventy-one".