200221122217 has 2 divisors, whose sum is σ = 200221122218. Its totient is φ = 200221122216.

The previous prime is 200221122151. The next prime is 200221122223. The reversal of 200221122217 is 712221122002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188793726016 + 11427396201 = 434504^2 + 106899^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221122217 - 2⁷ = 200221122089 is a prime.

It is not a weakly prime, because it can be changed into another prime (200221122317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110561108 + 100110561109.

It is an arithmetic number, because the mean of its divisors is an integer number (100110561109).

Almost surely, 2^200221122217 is an apocalyptic number.

It is an amenable number.

200221122217 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221122217 is an equidigital number, since it uses as much as digits as its factorization.

200221122217 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 22.

Adding to 200221122217 its reverse (712221122002), we get a palindrome (912442244219).

The spelling of 200221122217 in words is "two hundred billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred seventeen".