22332216 has 16 divisors (see below), whose sum is σ = 55830600. Its totient is φ = 7444064.

The previous prime is 22332209. The next prime is 22332221. The reversal of 22332216 is 61223322.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22332192 and 22332201.

It is a congruent number.

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, 465231 + ... + 465278.

Almost surely, 2^22332216 is an apocalyptic number.

It is an amenable number.

22332216 is an abundant number, since it is smaller than the sum of its proper divisors (33498384).

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

22332216 is a wasteful number, since it uses less digits than its factorization.

22332216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930518 (or 930514 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 22332216 is about 4725.6974088488. The cubic root of 22332216 is about 281.6073202621.

Adding to 22332216 its reverse (61223322), we get a palindrome (83555538).

The spelling of 22332216 in words is "twenty-two million, three hundred thirty-two thousand, two hundred sixteen".