22109018 has 8 divisors (see below), whose sum is σ = 33206112. Its totient is φ = 11040316.

The previous prime is 22108997. The next prime is 22109029. The reversal of 22109018 is 81090122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22108984 and 22109002.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 5030 + ... + 8337.

It is an arithmetic number, because the mean of its divisors is an integer number (4150764).

Almost surely, 2^22109018 is an apocalyptic number.

22109018 is a deficient number, since it is larger than the sum of its proper divisors (11097094).

22109018 is a wasteful number, since it uses less digits than its factorization.

22109018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14196.

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

The square root of 22109018 is about 4702.0227562189. The cubic root of 22109018 is about 280.6660081142. Note that the first 3 decimals are identical.

The spelling of 22109018 in words is "twenty-two million, one hundred nine thousand, eighteen".