122222017 has 2 divisors, whose sum is σ = 122222018. Its totient is φ = 122222016.

The previous prime is 122221999. The next prime is 122222053. The reversal of 122222017 is 710222221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103550976 + 18671041 = 10176^2 + 4321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122222017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122221985 and 122222003.

It is not a weakly prime, because it can be changed into another prime (122225017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111008 + 61111009.

It is an arithmetic number, because the mean of its divisors is an integer number (61111009).

Almost surely, 2^122222017 is an apocalyptic number.

It is an amenable number.

122222017 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222017 is an equidigital number, since it uses as much as digits as its factorization.

122222017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 122222017 is about 11055.4066863232. The cubic root of 122222017 is about 496.2682398911.

Adding to 122222017 its reverse (710222221), we get a palindrome (832444238).

The spelling of 122222017 in words is "one hundred twenty-two million, two hundred twenty-two thousand, seventeen".