1144221210257 has 2 divisors, whose sum is σ = 1144221210258. Its totient is φ = 1144221210256.

The previous prime is 1144221210217. The next prime is 1144221210317. The reversal of 1144221210257 is 7520121224411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867796581136 + 276424629121 = 931556^2 + 525761^2 .

It is an emirp because it is prime and its reverse (7520121224411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144221210257 - 2²⁴ = 1144204433041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144221210217) 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, 572110605128 + 572110605129.

It is an arithmetic number, because the mean of its divisors is an integer number (572110605129).

Almost surely, 2^{1144221210257} is an apocalyptic number.

It is an amenable number.

1144221210257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144221210257 is an equidigital number, since it uses as much as digits as its factorization.

1144221210257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 32.

Adding to 1144221210257 its reverse (7520121224411), we get a palindrome (8664342434668).

The spelling of 1144221210257 in words is "one trillion, one hundred forty-four billion, two hundred twenty-one million, two hundred ten thousand, two hundred fifty-seven".