1222401254317 has 2 divisors, whose sum is σ = 1222401254318. Its totient is φ = 1222401254316.

The previous prime is 1222401254309. The next prime is 1222401254387. The reversal of 1222401254317 is 7134521042221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1188479350276 + 33921904041 = 1090174^2 + 184179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222401254317 - 2³ = 1222401254309 is a prime.

It is a super-2 number, since 2×1222401254317² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222401254387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611200627158 + 611200627159.

It is an arithmetic number, because the mean of its divisors is an integer number (611200627159).

Almost surely, 2^{1222401254317} is an apocalyptic number.

It is an amenable number.

1222401254317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222401254317 is an equidigital number, since it uses as much as digits as its factorization.

1222401254317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 1222401254317 its reverse (7134521042221), we get a palindrome (8356922296538).

The spelling of 1222401254317 in words is "one trillion, two hundred twenty-two billion, four hundred one million, two hundred fifty-four thousand, three hundred seventeen".