22109853 has 4 divisors (see below), whose sum is σ = 29479808. Its totient is φ = 14739900.

The previous prime is 22109827. The next prime is 22109891. The reversal of 22109853 is 35890122.

It is a happy number.

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 not a de Polignac number, because 22109853 - 2⁵ = 22109821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22109853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3684973 + ... + 3684978.

It is an arithmetic number, because the mean of its divisors is an integer number (7369952).

Almost surely, 2^22109853 is an apocalyptic number.

It is an amenable number.

22109853 is a deficient number, since it is larger than the sum of its proper divisors (7369955).

22109853 is an equidigital number, since it uses as much as digits as its factorization.

22109853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369954.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22109853 is about 4702.1115469542. Note that the first 3 decimals coincide. The cubic root of 22109853 is about 280.6695414110.

Adding to 22109853 its reverse (35890122), we get a palindrome (57999975).

The spelling of 22109853 in words is "twenty-two million, one hundred nine thousand, eight hundred fifty-three".