22109973 has 4 divisors (see below), whose sum is σ = 29479968. Its totient is φ = 14739980.

The previous prime is 22109963. The next prime is 22109981. The reversal of 22109973 is 37990122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22109973 - 2⁶ = 22109909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109903) 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 3 ways as a sum of consecutive naturals, for example, 3684993 + ... + 3684998.

It is an arithmetic number, because the mean of its divisors is an integer number (7369992).

Almost surely, 2^22109973 is an apocalyptic number.

It is an amenable number.

22109973 is a deficient number, since it is larger than the sum of its proper divisors (7369995).

22109973 is an equidigital number, since it uses as much as digits as its factorization.

22109973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369994.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 22109973 is about 4702.1243071616. The cubic root of 22109973 is about 280.6700491829.

The spelling of 22109973 in words is "twenty-two million, one hundred nine thousand, nine hundred seventy-three".