222002320 has 80 divisors (see below), whose sum is σ = 549607680. Its totient is φ = 83105792.

The previous prime is 222002311. The next prime is 222002323. The reversal of 222002320 is 23200222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 222002320.

It is not an unprimeable number, because it can be changed into a prime (222002323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324699 + ... + 325381.

It is an arithmetic number, because the mean of its divisors is an integer number (6870096).

Almost surely, 2^222002320 is an apocalyptic number.

222002320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222002320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274803840).

222002320 is an abundant number, since it is smaller than the sum of its proper divisors (327605360).

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

222002320 is a wasteful number, since it uses less digits than its factorization.

222002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 222002320 is about 14899.7422796503. The cubic root of 222002320 is about 605.5070039101.

Adding to 222002320 its reverse (23200222), we get a palindrome (245202542).

The spelling of 222002320 in words is "two hundred twenty-two million, two thousand, three hundred twenty".