222233216 has 16 divisors (see below), whose sum is σ = 442730490. Its totient is φ = 111116544.

The previous prime is 222233213. The next prime is 222233237. The reversal of 222233216 is 612332222.

It can be written as a sum of positive squares in only one way, i.e., 208513600 + 13719616 = 14440^2 + 3704^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 222233191 and 222233200.

It is not an unprimeable number, because it can be changed into a prime (222233213) 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 as a sum of consecutive naturals, namely, 867971 + ... + 868226.

Almost surely, 2^222233216 is an apocalyptic number.

It is an amenable number.

222233216 is a deficient number, since it is larger than the sum of its proper divisors (220497274).

222233216 is an equidigital number, since it uses as much as digits as its factorization.

222233216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736211 (or 1736199 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 222233216 is about 14907.4885879547. The cubic root of 222233216 is about 605.7168526227.

Adding to 222233216 its reverse (612332222), we get a palindrome (834565438).

The spelling of 222233216 in words is "two hundred twenty-two million, two hundred thirty-three thousand, two hundred sixteen".