1245322221307 has 2 divisors, whose sum is σ = 1245322221308. Its totient is φ = 1245322221306.

The previous prime is 1245322221281. The next prime is 1245322221317. The reversal of 1245322221307 is 7031222235421.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7031222235421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1245322221307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245322221317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622661110653 + 622661110654.

It is an arithmetic number, because the mean of its divisors is an integer number (622661110654).

Almost surely, 2^{1245322221307} is an apocalyptic number.

1245322221307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245322221307 is an equidigital number, since it uses as much as digits as its factorization.

1245322221307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 1245322221307 its reverse (7031222235421), we get a palindrome (8276544456728).

The spelling of 1245322221307 in words is "one trillion, two hundred forty-five billion, three hundred twenty-two million, two hundred twenty-one thousand, three hundred seven".