622217201 has 2 divisors, whose sum is σ = 622217202. Its totient is φ = 622217200.

The previous prime is 622217173. The next prime is 622217207. The reversal of 622217201 is 102712226.

It is a happy number.

622217201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 460317025 + 161900176 = 21455^2 + 12724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622217201 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (622217207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311108600 + 311108601.

It is an arithmetic number, because the mean of its divisors is an integer number (311108601).

Almost surely, 2^622217201 is an apocalyptic number.

It is an amenable number.

622217201 is a deficient number, since it is larger than the sum of its proper divisors (1).

622217201 is an equidigital number, since it uses as much as digits as its factorization.

622217201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 622217201 is about 24944.2819299334. The cubic root of 622217201 is about 853.7171468643.

Adding to 622217201 its reverse (102712226), we get a palindrome (724929427).

The spelling of 622217201 in words is "six hundred twenty-two million, two hundred seventeen thousand, two hundred one".