122238 has 12 divisors (see below), whose sum is σ = 264888. Its totient is φ = 40740.

The previous prime is 122231. The next prime is 122251. The reversal of 122238 is 832221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6791 = 122238 / (1 + 2 + 2 + 2 + 3 + 8).

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 122238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231) by changing a digit.

122238 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3378 + ... + 3413.

It is an arithmetic number, because the mean of its divisors is an integer number (22074).

2¹²²²³⁸ is an apocalyptic number.

122238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

122238 is an abundant number, since it is smaller than the sum of its proper divisors (142650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122238 is a wasteful number, since it uses less digits than its factorization.

122238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799 (or 6796 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 122238 is about 349.6255139431. The cubic root of 122238 is about 49.6289871317.

Adding to 122238 its reverse (832221), we get a palindrome (954459).

The spelling of 122238 in words is "one hundred twenty-two thousand, two hundred thirty-eight".