198122 has 16 divisors (see below), whose sum is σ = 319680. Its totient is φ = 91872.

The previous prime is 198109. The next prime is 198127. The reversal of 198122 is 221891.

198122 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×198122³ = 23330248520735544, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198122.

It is not an unprimeable number, because it can be changed into a prime (198127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2678 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (19980).

2¹⁹⁸¹²² is an apocalyptic number.

198122 is a deficient number, since it is larger than the sum of its proper divisors (121558).

198122 is a wasteful number, since it uses less digits than its factorization.

198122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157.

The product of its digits is 288, while the sum is 23.

The square root of 198122 is about 445.1089754206. The cubic root of 198122 is about 58.2967353201.

The spelling of 198122 in words is "one hundred ninety-eight thousand, one hundred twenty-two".