224422217 has 2 divisors, whose sum is σ = 224422218. Its totient is φ = 224422216.

The previous prime is 224422199. The next prime is 224422223. The reversal of 224422217 is 712224422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217975696 + 6446521 = 14764^2 + 2539^2 .

It is a cyclic number.

It is not a de Polignac number, because 224422217 - 2⁶ = 224422153 is a prime.

It is not a weakly prime, because it can be changed into another prime (224422817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112211108 + 112211109.

It is an arithmetic number, because the mean of its divisors is an integer number (112211109).

Almost surely, 2^224422217 is an apocalyptic number.

It is an amenable number.

224422217 is a deficient number, since it is larger than the sum of its proper divisors (1).

224422217 is an equidigital number, since it uses as much as digits as its factorization.

224422217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 26.

The square root of 224422217 is about 14980.7281865736. The cubic root of 224422217 is about 607.6991321092.

Adding to 224422217 its reverse (712224422), we get a palindrome (936646639).

The spelling of 224422217 in words is "two hundred twenty-four million, four hundred twenty-two thousand, two hundred seventeen".