222262216 has 64 divisors (see below), whose sum is σ = 486466560. Its totient is φ = 94080000.

The previous prime is 222262193. The next prime is 222262217. The reversal of 222262216 is 612262222.

It is a happy number.

222262216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222262216² = 98800985322461312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222262217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150361 + ... + 151831.

It is an arithmetic number, because the mean of its divisors is an integer number (7601040).

Almost surely, 2^222262216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222262216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243233280).

222262216 is an abundant number, since it is smaller than the sum of its proper divisors (264204344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222262216 is a wasteful number, since it uses less digits than its factorization.

222262216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1602 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 222262216 is about 14908.4612217358. The cubic root of 222262216 is about 605.7431988563.

It can be divided in two parts, 22226 and 2216, that added together give a palindrome (24442).

The spelling of 222262216 in words is "two hundred twenty-two million, two hundred sixty-two thousand, two hundred sixteen".