1210220017 has 2 divisors, whose sum is σ = 1210220018. Its totient is φ = 1210220016.

The previous prime is 1210219973. The next prime is 1210220047. The reversal of 1210220017 is 7100220121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1112289201 + 97930816 = 33351^2 + 9896^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210220017 - 2⁷ = 1210219889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210220047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605110008 + 605110009.

It is an arithmetic number, because the mean of its divisors is an integer number (605110009).

Almost surely, 2^1210220017 is an apocalyptic number.

It is an amenable number.

1210220017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210220017 is an equidigital number, since it uses as much as digits as its factorization.

1210220017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1210220017 is about 34788.2166401211. The cubic root of 1210220017 is about 1065.6668197965. Note that the first 3 decimals are identical.

Adding to 1210220017 its reverse (7100220121), we get a palindrome (8310440138).

The spelling of 1210220017 in words is "one billion, two hundred ten million, two hundred twenty thousand, seventeen".