22109975 has 24 divisors (see below), whose sum is σ = 28950528. Its totient is φ = 16725600.

The previous prime is 22109963. The next prime is 22109981. The reversal of 22109975 is 57990122.

It is not a de Polignac number, because 22109975 - 2¹⁶ = 22044439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36122 + ... + 36728.

It is an arithmetic number, because the mean of its divisors is an integer number (1206272).

Almost surely, 2^22109975 is an apocalyptic number.

22109975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22109975 is a deficient number, since it is larger than the sum of its proper divisors (6840553).

22109975 is a wasteful number, since it uses less digits than its factorization.

22109975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 22109975 is about 4702.1245198314. The cubic root of 22109975 is about 280.6700576457.

The spelling of 22109975 in words is "twenty-two million, one hundred nine thousand, nine hundred seventy-five".