1322245540591 has 2 divisors, whose sum is σ = 1322245540592. Its totient is φ = 1322245540590.

The previous prime is 1322245540589. The next prime is 1322245540619. The reversal of 1322245540591 is 1950455422231.

It is a weak prime.

It is an emirp because it is prime and its reverse (1950455422231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1322245540591 - 2¹ = 1322245540589 is a prime.

It is a super-2 number, since 2×1322245540591² (a number of 25 digits) contains 22 as substring.

Together with 1322245540589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322245540501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661122770295 + 661122770296.

It is an arithmetic number, because the mean of its divisors is an integer number (661122770296).

Almost surely, 2^{1322245540591} is an apocalyptic number.

1322245540591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322245540591 is an equidigital number, since it uses as much as digits as its factorization.

1322245540591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 1322245540591 in words is "one trillion, three hundred twenty-two billion, two hundred forty-five million, five hundred forty thousand, five hundred ninety-one".