220223220 has 48 divisors (see below), whose sum is σ = 704715648. Its totient is φ = 50336640.

The previous prime is 220223197. The next prime is 220223231. The reversal of 220223220 is 22322022.

It is a super-3 number, since 3×220223220³ (a number of 26 digits) contains 333 as substring.

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 220223220.

It is a congruent number.

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, 261751 + ... + 262590.

It is an arithmetic number, because the mean of its divisors is an integer number (14681576).

Almost surely, 2^220223220 is an apocalyptic number.

220223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220223220 is an abundant number, since it is smaller than the sum of its proper divisors (484492428).

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

220223220 is a wasteful number, since it uses less digits than its factorization.

220223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524360 (or 524358 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 220223220 is about 14839.9198111041. The cubic root of 220223220 is about 603.8851769216.

Adding to 220223220 its reverse (22322022), we get a palindrome (242545242).

The spelling of 220223220 in words is "two hundred twenty million, two hundred twenty-three thousand, two hundred twenty".