22109075 has 6 divisors (see below), whose sum is σ = 27415284. Its totient is φ = 17687240.

The previous prime is 22109069. The next prime is 22109077. The reversal of 22109075 is 57090122.

It is not a de Polignac number, because 22109075 - 2¹⁸ = 21846931 is a prime.

It is a super-2 number, since 2×22109075² = 977622394711250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22109077) by changing a digit.

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, 442157 + ... + 442206.

It is an arithmetic number, because the mean of its divisors is an integer number (4569214).

Almost surely, 2^22109075 is an apocalyptic number.

22109075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22109075 is a deficient number, since it is larger than the sum of its proper divisors (5306209).

22109075 is an equidigital number, since it uses as much as digits as its factorization.

22109075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884373 (or 884368 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 22109075 is about 4702.0288174362. The cubic root of 22109075 is about 280.6662493121. Note that the first 3 decimals are identical.

Adding to 22109075 its reverse (57090122), we get a palindrome (79199197).

The spelling of 22109075 in words is "twenty-two million, one hundred nine thousand, seventy-five".