220230217 has 2 divisors, whose sum is σ = 220230218. Its totient is φ = 220230216.

The previous prime is 220230209. The next prime is 220230259. The reversal of 220230217 is 712032022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184660921 + 35569296 = 13589^2 + 5964^2 .

It is a cyclic number.

It is not a de Polignac number, because 220230217 - 2³ = 220230209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220230194 and 220230203.

It is not a weakly prime, because it can be changed into another prime (220230817) 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, 110115108 + 110115109.

It is an arithmetic number, because the mean of its divisors is an integer number (110115109).

Almost surely, 2^220230217 is an apocalyptic number.

It is an amenable number.

220230217 is a deficient number, since it is larger than the sum of its proper divisors (1).

220230217 is an equidigital number, since it uses as much as digits as its factorization.

220230217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 220230217 is about 14840.1555584839. The cubic root of 220230217 is about 603.8915724625.

Adding to 220230217 its reverse (712032022), we get a palindrome (932262239).

The spelling of 220230217 in words is "two hundred twenty million, two hundred thirty thousand, two hundred seventeen".