222214266 has 48 divisors (see below), whose sum is σ = 508775904. Its totient is φ = 72665424.

The previous prime is 222214229. The next prime is 222214271. The reversal of 222214266 is 662412222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 21445 + ... + 30071.

It is an arithmetic number, because the mean of its divisors is an integer number (10599498).

Almost surely, 2^222214266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222214266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254387952).

222214266 is an abundant number, since it is smaller than the sum of its proper divisors (286561638).

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

222214266 is an equidigital number, since it uses as much as digits as its factorization.

222214266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697 (or 8685 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 222214266 is about 14906.8529878040. The cubic root of 222214266 is about 605.6996354835.

Adding to 222214266 its reverse (662412222), we get a palindrome (884626488).

The spelling of 222214266 in words is "two hundred twenty-two million, two hundred fourteen thousand, two hundred sixty-six".