222213320 has 64 divisors (see below), whose sum is σ = 576823680. Its totient is φ = 75465216.

The previous prime is 222213319. The next prime is 222213347. The reversal of 222213320 is 23312222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26252 + ... + 33668.

It is an arithmetic number, because the mean of its divisors is an integer number (9012870).

Almost surely, 2^222213320 is an apocalyptic number.

222213320 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 222213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288411840).

222213320 is an abundant number, since it is smaller than the sum of its proper divisors (354610360).

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

222213320 is a wasteful number, since it uses less digits than its factorization.

222213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542 (or 7538 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222213320 is about 14906.8212573976. The cubic root of 222213320 is about 605.6987759637.

Adding to 222213320 its reverse (23312222), we get a palindrome (245525542).

The spelling of 222213320 in words is "two hundred twenty-two million, two hundred thirteen thousand, three hundred twenty".