314122221397 has 2 divisors, whose sum is σ = 314122221398. Its totient is φ = 314122221396.

The previous prime is 314122221349. The next prime is 314122221403. The reversal of 314122221397 is 793122221413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214812783441 + 99309437956 = 463479^2 + 315134^2 .

It is an emirp because it is prime and its reverse (793122221413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-314122221397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314122221317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157061110698 + 157061110699.

It is an arithmetic number, because the mean of its divisors is an integer number (157061110699).

Almost surely, 2^314122221397 is an apocalyptic number.

It is an amenable number.

314122221397 is a deficient number, since it is larger than the sum of its proper divisors (1).

314122221397 is an equidigital number, since it uses as much as digits as its factorization.

314122221397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The spelling of 314122221397 in words is "three hundred fourteen billion, one hundred twenty-two million, two hundred twenty-one thousand, three hundred ninety-seven".