222002244 has 72 divisors (see below), whose sum is σ = 577100160. Its totient is φ = 71923392.

The previous prime is 222002243. The next prime is 222002267. The reversal of 222002244 is 442200222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222002243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302502 + ... + 303234.

It is an arithmetic number, because the mean of its divisors is an integer number (8015280).

Almost surely, 2^222002244 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 222002244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288550080).

222002244 is an abundant number, since it is smaller than the sum of its proper divisors (355097916).

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

222002244 is a wasteful number, since it uses less digits than its factorization.

222002244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 222002244 is about 14899.7397292704. The cubic root of 222002244 is about 605.5069348139.

Adding to 222002244 its reverse (442200222), we get a palindrome (664202466).

The spelling of 222002244 in words is "two hundred twenty-two million, two thousand, two hundred forty-four".