2213213173 has 2 divisors, whose sum is σ = 2213213174. Its totient is φ = 2213213172.

The previous prime is 2213213159. The next prime is 2213213179. The reversal of 2213213173 is 3713123122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1569982129 + 643231044 = 39623^2 + 25362^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213213173 - 2¹⁷ = 2213082101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2213213179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106606586 + 1106606587.

It is an arithmetic number, because the mean of its divisors is an integer number (1106606587).

Almost surely, 2^2213213173 is an apocalyptic number.

It is an amenable number.

2213213173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213213173 is an equidigital number, since it uses as much as digits as its factorization.

2213213173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 25.

The square root of 2213213173 is about 47044.7996382172. The cubic root of 2213213173 is about 1303.1900301768.

Adding to 2213213173 its reverse (3713123122), we get a palindrome (5926336295).

The spelling of 2213213173 in words is "two billion, two hundred thirteen million, two hundred thirteen thousand, one hundred seventy-three".