1222331442457 has 2 divisors, whose sum is σ = 1222331442458. Its totient is φ = 1222331442456.

The previous prime is 1222331442413. The next prime is 1222331442463. The reversal of 1222331442457 is 7542441332221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1208392334361 + 13939108096 = 1099269^2 + 118064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222331442457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222331440457) 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, 611165721228 + 611165721229.

It is an arithmetic number, because the mean of its divisors is an integer number (611165721229).

Almost surely, 2^{1222331442457} is an apocalyptic number.

It is an amenable number.

1222331442457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222331442457 is an equidigital number, since it uses as much as digits as its factorization.

1222331442457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 40.

Adding to 1222331442457 its reverse (7542441332221), we get a palindrome (8764772774678).

The spelling of 1222331442457 in words is "one trillion, two hundred twenty-two billion, three hundred thirty-one million, four hundred forty-two thousand, four hundred fifty-seven".