7221160712737 has 2 divisors, whose sum is σ = 7221160712738. Its totient is φ = 7221160712736.

The previous prime is 7221160712719. The next prime is 7221160712783. The reversal of 7221160712737 is 7372170611227.

It is an a-pointer prime, because the next prime (7221160712783) can be obtained adding 7221160712737 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7009409805841 + 211750906896 = 2647529^2 + 460164^2 .

It is an emirp because it is prime and its reverse (7372170611227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7221160712737 - 2¹⁹ = 7221160188449 is a prime.

It is not a weakly prime, because it can be changed into another prime (7221160710737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610580356368 + 3610580356369.

It is an arithmetic number, because the mean of its divisors is an integer number (3610580356369).

Almost surely, 2^{7221160712737} is an apocalyptic number.

It is an amenable number.

7221160712737 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221160712737 is an equidigital number, since it uses as much as digits as its factorization.

7221160712737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 46.

The spelling of 7221160712737 in words is "seven trillion, two hundred twenty-one billion, one hundred sixty million, seven hundred twelve thousand, seven hundred thirty-seven".