122220317 has 2 divisors, whose sum is σ = 122220318. Its totient is φ = 122220316.

The previous prime is 122220311. The next prime is 122220349. The reversal of 122220317 is 713022221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84015556 + 38204761 = 9166^2 + 6181^2 .

It is an emirp because it is prime and its reverse (713022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122220317 - 2⁶ = 122220253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122220311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110158 + 61110159.

It is an arithmetic number, because the mean of its divisors is an integer number (61110159).

Almost surely, 2^122220317 is an apocalyptic number.

It is an amenable number.

122220317 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220317 is an equidigital number, since it uses as much as digits as its factorization.

122220317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 122220317 is about 11055.3298005984. The cubic root of 122220317 is about 496.2659389966.

Adding to 122220317 its reverse (713022221), we get a palindrome (835242538).

The spelling of 122220317 in words is "one hundred twenty-two million, two hundred twenty thousand, three hundred seventeen".