1022210257 has 2 divisors, whose sum is σ = 1022210258. Its totient is φ = 1022210256.

The previous prime is 1022210251. The next prime is 1022210261. The reversal of 1022210257 is 7520122201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994077841 + 28132416 = 31529^2 + 5304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022210257 - 2⁷ = 1022210129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022210251) 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, 511105128 + 511105129.

It is an arithmetic number, because the mean of its divisors is an integer number (511105129).

Almost surely, 2^1022210257 is an apocalyptic number.

It is an amenable number.

1022210257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022210257 is an equidigital number, since it uses as much as digits as its factorization.

1022210257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1022210257 is about 31972.0230357730. The cubic root of 1022210257 is about 1007.3492748433.

Adding to 1022210257 its reverse (7520122201), we get a palindrome (8542332458).

The spelling of 1022210257 in words is "one billion, twenty-two million, two hundred ten thousand, two hundred fifty-seven".