17220122 has 4 divisors (see below), whose sum is σ = 25830186. Its totient is φ = 8610060.

The previous prime is 17220109. The next prime is 17220157. The reversal of 17220122 is 22102271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22102271 = 2477 ⋅8923.

It can be written as a sum of positive squares in only one way, i.e., 15062161 + 2157961 = 3881^2 + 1469^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 17220122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4305029 + ... + 4305032.

Almost surely, 2^17220122 is an apocalyptic number.

17220122 is a deficient number, since it is larger than the sum of its proper divisors (8610064).

17220122 is an equidigital number, since it uses as much as digits as its factorization.

17220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8610063.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 17220122 is about 4149.7134840854. The cubic root of 17220122 is about 258.2331986057.

Adding to 17220122 its reverse (22102271), we get a palindrome (39322393).

The spelling of 17220122 in words is "seventeen million, two hundred twenty thousand, one hundred twenty-two".