127222406293 has 2 divisors, whose sum is σ = 127222406294. Its totient is φ = 127222406292.

The previous prime is 127222406249. The next prime is 127222406309. The reversal of 127222406293 is 392604222721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121621680049 + 5600726244 = 348743^2 + 74838^2 .

It is an emirp because it is prime and its reverse (392604222721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127222406293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127222406243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63611203146 + 63611203147.

It is an arithmetic number, because the mean of its divisors is an integer number (63611203147).

Almost surely, 2^127222406293 is an apocalyptic number.

It is an amenable number.

127222406293 is a deficient number, since it is larger than the sum of its proper divisors (1).

127222406293 is an equidigital number, since it uses as much as digits as its factorization.

127222406293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 127222406293 in words is "one hundred twenty-seven billion, two hundred twenty-two million, four hundred six thousand, two hundred ninety-three".