223021120 has 56 divisors (see below), whose sum is σ = 606942144. Its totient is φ = 76463616.

The previous prime is 223021093. The next prime is 223021151. The reversal of 223021120 is 21120322.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 223021120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47542 + ... + 52021.

Almost surely, 2^223021120 is an apocalyptic number.

223021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223021120 is an abundant number, since it is smaller than the sum of its proper divisors (383921024).

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

223021120 is an equidigital number, since it uses as much as digits as its factorization.

223021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99587 (or 99577 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 223021120 is about 14933.8916562295. The cubic root of 223021120 is about 606.4318429962.

Adding to 223021120 its reverse (21120322), we get a palindrome (244141442).

The spelling of 223021120 in words is "two hundred twenty-three million, twenty-one thousand, one hundred twenty".