220022417 has 2 divisors, whose sum is σ = 220022418. Its totient is φ = 220022416.

The previous prime is 220022401. The next prime is 220022419. The reversal of 220022417 is 714220022.

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., 219750976 + 271441 = 14824^2 + 521^2 .

It is a cyclic number.

It is not a de Polignac number, because 220022417 - 2⁴ = 220022401 is a prime.

Together with 220022419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220022419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110011208 + 110011209.

It is an arithmetic number, because the mean of its divisors is an integer number (110011209).

Almost surely, 2^220022417 is an apocalyptic number.

It is an amenable number.

220022417 is a deficient number, since it is larger than the sum of its proper divisors (1).

220022417 is an equidigital number, since it uses as much as digits as its factorization.

220022417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 220022417 is about 14833.1526318581. The cubic root of 220022417 is about 603.7015771025.

Adding to 220022417 its reverse (714220022), we get a palindrome (934242439).

The spelling of 220022417 in words is "two hundred twenty million, twenty-two thousand, four hundred seventeen".