223221232 has 40 divisors (see below), whose sum is σ = 466706240. Its totient is φ = 102816000.

The previous prime is 223221227. The next prime is 223221239. The reversal of 223221232 is 232122322.

223221232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223221232³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223221239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155494 + ... + 156922.

It is an arithmetic number, because the mean of its divisors is an integer number (11667656).

Almost surely, 2^223221232 is an apocalyptic number.

It is an amenable number.

223221232 is an abundant number, since it is smaller than the sum of its proper divisors (243485008).

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

223221232 is a wasteful number, since it uses less digits than its factorization.

223221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 2195 counting only the distinct ones).

The product of its digits is 576, while the sum is 19.

The square root of 223221232 is about 14940.5900820550. The cubic root of 223221232 is about 606.6131681413.

Adding to 223221232 its reverse (232122322), we get a palindrome (455343554).

The spelling of 223221232 in words is "two hundred twenty-three million, two hundred twenty-one thousand, two hundred thirty-two".