220313216 has 16 divisors (see below), whose sum is σ = 438905490. Its totient is φ = 110156544.

The previous prime is 220313201. The next prime is 220313231. The reversal of 220313216 is 612313022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220313201) and next prime (220313231).

It can be written as a sum of positive squares in only one way, i.e., 220225600 + 87616 = 14840^2 + 296^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 860471 + ... + 860726.

Almost surely, 2^220313216 is an apocalyptic number.

It is an amenable number.

220313216 is a deficient number, since it is larger than the sum of its proper divisors (218592274).

220313216 is an equidigital number, since it uses as much as digits as its factorization.

220313216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721211 (or 1721199 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 220313216 is about 14842.9517280088. The cubic root of 220313216 is about 603.9674265725.

Adding to 220313216 its reverse (612313022), we get a palindrome (832626238).

The spelling of 220313216 in words is "two hundred twenty million, three hundred thirteen thousand, two hundred sixteen".