109122 has 16 divisors (see below), whose sum is σ = 235200. Its totient is φ = 33552.

The previous prime is 109121. The next prime is 109133. The reversal of 109122 is 221901.

It is a happy number.

It is a super-2 number, since 2×109122² = 23815221768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622 + ... + 777.

It is an arithmetic number, because the mean of its divisors is an integer number (14700).

2¹⁰⁹¹²² is an apocalyptic number.

109122 is an abundant number, since it is smaller than the sum of its proper divisors (126078).

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

109122 is a wasteful number, since it uses less digits than its factorization.

109122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 109122 is about 330.3361923859. The cubic root of 109122 is about 47.7863770752.

It can be divided in two parts, 109 and 122, that added together give a triangular number (231 = T₂₁).

The spelling of 109122 in words is "one hundred nine thousand, one hundred twenty-two".