223016220 has 192 divisors, whose sum is σ = 812851200. Its totient is φ = 49697280.

The previous prime is 223016207. The next prime is 223016231. The reversal of 223016220 is 22610322.

223016220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 223016193 and 223016202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154261 + ... + 155699.

It is an arithmetic number, because the mean of its divisors is an integer number (4233600).

Almost surely, 2^223016220 is an apocalyptic number.

223016220 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 223016220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406425600).

223016220 is an abundant number, since it is smaller than the sum of its proper divisors (589834980).

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

223016220 is a wasteful number, since it uses less digits than its factorization.

223016220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 223016220 is about 14933.7275989620. The cubic root of 223016220 is about 606.4274016563.

Adding to 223016220 its reverse (22610322), we get a palindrome (245626542).

The spelling of 223016220 in words is "two hundred twenty-three million, sixteen thousand, two hundred twenty".