222111016 has 8 divisors (see below), whose sum is σ = 416458170. Its totient is φ = 111055504.

The previous prime is 222111011. The next prime is 222111017. The reversal of 222111016 is 610111222.

222111016 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 166668100 + 55442916 = 12910^2 + 7446^2 .

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

It is not an unprimeable number, because it can be changed into a prime (222111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13881931 + ... + 13881946.

Almost surely, 2^222111016 is an apocalyptic number.

It is an amenable number.

222111016 is a deficient number, since it is larger than the sum of its proper divisors (194347154).

222111016 is a wasteful number, since it uses less digits than its factorization.

222111016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27763883 (or 27763879 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 222111016 is about 14903.3894131503. The cubic root of 222111016 is about 605.6058098605.

Adding to 222111016 its reverse (610111222), we get a palindrome (832222238).

The spelling of 222111016 in words is "two hundred twenty-two million, one hundred eleven thousand, sixteen".