122228 has 6 divisors (see below), whose sum is σ = 213906. Its totient is φ = 61112.

The previous prime is 122219. The next prime is 122231. The reversal of 122228 is 822221.

It can be written as a sum of positive squares in only one way, i.e., 77284 + 44944 = 278^2 + 212^2 .

It is a super-4 number, since 4×122228⁴ (a number of 21 digits) contains 4444 as substring.

It is a plaindrome in base 10.

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, 15275 + ... + 15282.

It is an arithmetic number, because the mean of its divisors is an integer number (35651).

2¹²²²²⁸ is an apocalyptic number.

It is an amenable number.

122228 is a deficient number, since it is larger than the sum of its proper divisors (91678).

122228 is a wasteful number, since it uses less digits than its factorization.

122228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30561 (or 30559 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 122228 is about 349.6112126348. The cubic root of 122228 is about 49.6276337517.

Adding to 122228 its reverse (822221), we get a palindrome (944449).

The spelling of 122228 in words is "one hundred twenty-two thousand, two hundred twenty-eight".