22118873 has 8 divisors (see below), whose sum is σ = 25381440. Its totient is φ = 18882000.

The previous prime is 22118867. The next prime is 22118891. The reversal of 22118873 is 37881122.

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

It is a cyclic number.

It is not a de Polignac number, because 22118873 - 2⁶ = 22118809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22118273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4538 + ... + 8051.

It is an arithmetic number, because the mean of its divisors is an integer number (3172680).

Almost surely, 2^22118873 is an apocalyptic number.

It is an amenable number.

22118873 is a deficient number, since it is larger than the sum of its proper divisors (3262567).

22118873 is a wasteful number, since it uses less digits than its factorization.

22118873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12847.

The product of its digits is 5376, while the sum is 32.

The square root of 22118873 is about 4703.0705927086. The cubic root of 22118873 is about 280.7077038096.

Adding to 22118873 its reverse (37881122), we get a palindrome (59999995).

The spelling of 22118873 in words is "twenty-two million, one hundred eighteen thousand, eight hundred seventy-three".