222130320 has 80 divisors (see below), whose sum is σ = 718561152. Its totient is φ = 56657920.

The previous prime is 222130267. The next prime is 222130361. The reversal of 222130320 is 23031222.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222130320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14601 + ... + 25640.

Almost surely, 2^222130320 is an apocalyptic number.

222130320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222130320 is an abundant number, since it is smaller than the sum of its proper divisors (496430832).

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

222130320 is a wasteful number, since it uses less digits than its factorization.

222130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40280 (or 40274 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 222130320 is about 14904.0370369910. The cubic root of 222130320 is about 605.6233540539.

Adding to 222130320 its reverse (23031222), we get a palindrome (245161542).

The spelling of 222130320 in words is "two hundred twenty-two million, one hundred thirty thousand, three hundred twenty".