204220022417 has 2 divisors, whose sum is σ = 204220022418. Its totient is φ = 204220022416.

The previous prime is 204220022327. The next prime is 204220022423. The reversal of 204220022417 is 714220022402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130410543376 + 73809479041 = 361124^2 + 271679^2 .

It is a cyclic number.

It is not a de Polignac number, because 204220022417 - 2¹⁶ = 204219956881 is a prime.

It is not a weakly prime, because it can be changed into another prime (204220022497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102110011208 + 102110011209.

It is an arithmetic number, because the mean of its divisors is an integer number (102110011209).

Almost surely, 2^204220022417 is an apocalyptic number.

It is an amenable number.

204220022417 is a deficient number, since it is larger than the sum of its proper divisors (1).

204220022417 is an equidigital number, since it uses as much as digits as its factorization.

204220022417 is an odious number, because the sum of its binary digits is odd.

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

Adding to 204220022417 its reverse (714220022402), we get a palindrome (918440044819).

The spelling of 204220022417 in words is "two hundred four billion, two hundred twenty million, twenty-two thousand, four hundred seventeen".