22253216 has 24 divisors (see below), whose sum is σ = 44641044. Its totient is φ = 10915840.

The previous prime is 22253197. The next prime is 22253239. The reversal of 22253216 is 61235222.

It can be written as a sum of positive squares in 2 ways, for example, as 22090000 + 163216 = 4700^2 + 404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22253191 and 22253200.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4865 + ... + 8256.

Almost surely, 2^22253216 is an apocalyptic number.

It is an amenable number.

22253216 is an abundant number, since it is smaller than the sum of its proper divisors (22387828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22253216 is a wasteful number, since it uses less digits than its factorization.

22253216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13184 (or 13176 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 22253216 is about 4717.3314490292. The cubic root of 22253216 is about 281.2748668713.

Adding to 22253216 its reverse (61235222), we get a palindrome (83488438).

The spelling of 22253216 in words is "twenty-two million, two hundred fifty-three thousand, two hundred sixteen".