216622112 has 48 divisors (see below), whose sum is σ = 504221760. Its totient is φ = 89634048.

The previous prime is 216622111. The next prime is 216622121. The reversal of 216622112 is 211226612.

It is a happy number.

216622112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216622111) 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, 10178 + ... + 23169.

It is an arithmetic number, because the mean of its divisors is an integer number (10504620).

Almost surely, 2^216622112 is an apocalyptic number.

It is an amenable number.

216622112 is an abundant number, since it is smaller than the sum of its proper divisors (287599648).

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

216622112 is a wasteful number, since it uses less digits than its factorization.

216622112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33393 (or 33385 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 216622112 is about 14718.0879192917. The cubic root of 216622112 is about 600.5754774959.

Adding to 216622112 its reverse (211226612), we get a palindrome (427848724).

The spelling of 216622112 in words is "two hundred sixteen million, six hundred twenty-two thousand, one hundred twelve".