9012216 has 16 divisors (see below), whose sum is σ = 22530600. Its totient is φ = 3004064.

The previous prime is 9012187. The next prime is 9012217. The reversal of 9012216 is 6122109.

It is a junction number, because it is equal to n+sod(n) for n = 9012192 and 9012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012217) 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 3 ways as a sum of consecutive naturals, for example, 187731 + ... + 187778.

Almost surely, 2^9012216 is an apocalyptic number.

It is an amenable number.

9012216 is an abundant number, since it is smaller than the sum of its proper divisors (13518384).

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

9012216 is a wasteful number, since it uses less digits than its factorization.

9012216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375518 (or 375514 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 9012216 is about 3002.0353095858. The cubic root of 9012216 is about 208.1024519937.

The spelling of 9012216 in words is "nine million, twelve thousand, two hundred sixteen".