122217259 has 2 divisors, whose sum is σ = 122217260. Its totient is φ = 122217258.

The previous prime is 122217149. The next prime is 122217287. The reversal of 122217259 is 952712221.

It is a strong prime.

It is an emirp because it is prime and its reverse (952712221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122217259 - 2⁹ = 122216747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122217259.

It is not a weakly prime, because it can be changed into another prime (122217299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61108629 + 61108630.

It is an arithmetic number, because the mean of its divisors is an integer number (61108630).

Almost surely, 2^122217259 is an apocalyptic number.

122217259 is a deficient number, since it is larger than the sum of its proper divisors (1).

122217259 is an equidigital number, since it uses as much as digits as its factorization.

122217259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 122217259 is about 11055.1914954016. The cubic root of 122217259 is about 496.2618000396.

It can be divided in two parts, 1222 and 17259, that added together give a palindrome (18481).

The spelling of 122217259 in words is "one hundred twenty-two million, two hundred seventeen thousand, two hundred fifty-nine".