22118325 has 12 divisors (see below), whose sum is σ = 36569088. Its totient is φ = 11796400.

The previous prime is 22118273. The next prime is 22118339. The reversal of 22118325 is 52381122.

It is not a de Polignac number, because 22118325 - 2⁸ = 22118069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22118295 and 22118304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147381 + ... + 147530.

It is an arithmetic number, because the mean of its divisors is an integer number (3047424).

Almost surely, 2^22118325 is an apocalyptic number.

22118325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22118325 is a deficient number, since it is larger than the sum of its proper divisors (14450763).

22118325 is a wasteful number, since it uses less digits than its factorization.

22118325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294924 (or 294919 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 22118325 is about 4703.0123325375. The cubic root of 22118325 is about 280.7053855918.

Adding to 22118325 its reverse (52381122), we get a palindrome (74499447).

The spelling of 22118325 in words is "twenty-two million, one hundred eighteen thousand, three hundred twenty-five".