122422 has 4 divisors (see below), whose sum is σ = 183636. Its totient is φ = 61210.

The previous prime is 122401. The next prime is 122443. The reversal of 122422 is 224221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (122401) and next prime (122443).

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30604 + ... + 30607.

It is an arithmetic number, because the mean of its divisors is an integer number (45909).

2¹²²⁴²² is an apocalyptic number.

122422 is a deficient number, since it is larger than the sum of its proper divisors (61214).

122422 is an equidigital number, since it uses as much as digits as its factorization.

122422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61213.

The product of its digits is 64, while the sum is 13.

The square root of 122422 is about 349.8885536853. Note that the first 3 decimals coincide. The cubic root of 122422 is about 49.6538761613.

Adding to 122422 its reverse (224221), we get a palindrome (346643).

The spelling of 122422 in words is "one hundred twenty-two thousand, four hundred twenty-two", and thus it is an iban number.