2217222071 has 2 divisors, whose sum is σ = 2217222072. Its totient is φ = 2217222070.

The previous prime is 2217222061. The next prime is 2217222097. The reversal of 2217222071 is 1702227122.

It is an a-pointer prime, because the next prime (2217222097) can be obtained adding 2217222071 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2217222071 - 2¹⁴ = 2217205687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2217222071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217222031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108611035 + 1108611036.

It is an arithmetic number, because the mean of its divisors is an integer number (1108611036).

Almost surely, 2^2217222071 is an apocalyptic number.

2217222071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217222071 is an equidigital number, since it uses as much as digits as its factorization.

2217222071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 2217222071 is about 47087.3876000782. The cubic root of 2217222071 is about 1303.9763988775.

Adding to 2217222071 its reverse (1702227122), we get a palindrome (3919449193).

The spelling of 2217222071 in words is "two billion, two hundred seventeen million, two hundred twenty-two thousand, seventy-one".