22118307 has 8 divisors (see below), whose sum is σ = 29543184. Its totient is φ = 14719488.

The previous prime is 22118273. The next prime is 22118339. The reversal of 22118307 is 70381122.

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

It is not a de Polignac number, because 22118307 - 2⁷ = 22118179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22118347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4438 + ... + 7995.

It is an arithmetic number, because the mean of its divisors is an integer number (3692898).

Almost surely, 2^22118307 is an apocalyptic number.

22118307 is a deficient number, since it is larger than the sum of its proper divisors (7424877).

22118307 is a wasteful number, since it uses less digits than its factorization.

22118307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13029.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 22118307 is about 4703.0104188700. The cubic root of 22118307 is about 280.7053094454.

Adding to 22118307 its reverse (70381122), we get a palindrome (92499429).

It can be divided in two parts, 221 and 18307, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 22118307 in words is "twenty-two million, one hundred eighteen thousand, three hundred seven".