222301312 has 16 divisors (see below), whose sum is σ = 442866150. Its totient is φ = 111150592.

The previous prime is 222301297. The next prime is 222301319. The reversal of 222301312 is 213103222.

222301312 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., 215032896 + 7268416 = 14664^2 + 2696^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (222301319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 868237 + ... + 868492.

Almost surely, 2^222301312 is an apocalyptic number.

It is an amenable number.

222301312 is a deficient number, since it is larger than the sum of its proper divisors (220564838).

222301312 is an equidigital number, since it uses as much as digits as its factorization.

222301312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736743 (or 1736731 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 222301312 is about 14909.7723658009. The cubic root of 222301312 is about 605.7787135862.

Adding to 222301312 its reverse (213103222), we get a palindrome (435404534).

The spelling of 222301312 in words is "two hundred twenty-two million, three hundred one thousand, three hundred twelve".