1022122217 has 2 divisors, whose sum is σ = 1022122218. Its totient is φ = 1022122216.

The previous prime is 1022122201. The next prime is 1022122243. The reversal of 1022122217 is 7122212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922701376 + 99420841 = 30376^2 + 9971^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022122217 - 2⁴ = 1022122201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022122247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511061108 + 511061109.

It is an arithmetic number, because the mean of its divisors is an integer number (511061109).

Almost surely, 2^1022122217 is an apocalyptic number.

It is an amenable number.

1022122217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022122217 is an equidigital number, since it uses as much as digits as its factorization.

1022122217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1022122217 is about 31970.6461773922. The cubic root of 1022122217 is about 1007.3203539908.

Adding to 1022122217 its reverse (7122212201), we get a palindrome (8144334418).

The spelling of 1022122217 in words is "one billion, twenty-two million, one hundred twenty-two thousand, two hundred seventeen".