220216 has 8 divisors (see below), whose sum is σ = 412920. Its totient is φ = 110104.

The previous prime is 220189. The next prime is 220217. The reversal of 220216 is 612022.

It is a happy number.

220216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 220196 and 220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220217) by changing a digit.

220216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13756 + ... + 13771.

It is an arithmetic number, because the mean of its divisors is an integer number (51615).

2²²⁰²¹⁶ is an apocalyptic number.

It is an amenable number.

220216 is a deficient number, since it is larger than the sum of its proper divisors (192704).

220216 is a wasteful number, since it uses less digits than its factorization.

220216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27533 (or 27529 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220216 is about 469.2717762662. The cubic root of 220216 is about 60.3878577408.

Adding to 220216 its reverse (612022), we get a palindrome (832238).

The spelling of 220216 in words is "two hundred twenty thousand, two hundred sixteen".