223221308 has 24 divisors (see below), whose sum is σ = 398146560. Its totient is φ = 109473840.

The previous prime is 223221307. The next prime is 223221353. The reversal of 223221308 is 803122322.

223221308 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 3×223221308³ (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 (223221301) 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, 151013 + ... + 152483.

It is an arithmetic number, because the mean of its divisors is an integer number (16589440).

Almost surely, 2^223221308 is an apocalyptic number.

It is an amenable number.

223221308 is a deficient number, since it is larger than the sum of its proper divisors (174925252).

223221308 is a wasteful number, since it uses less digits than its factorization.

223221308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 223221308 is about 14940.5926254617. The cubic root of 223221308 is about 606.6132369857.

The spelling of 223221308 in words is "two hundred twenty-three million, two hundred twenty-one thousand, three hundred eight".