221163232 has 24 divisors (see below), whose sum is σ = 437637816. Its totient is φ = 110017152.

The previous prime is 221163203. The next prime is 221163253. The reversal of 221163232 is 232361122.

221163232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11238 + ... + 23845.

It is an arithmetic number, because the mean of its divisors is an integer number (18234909).

Almost surely, 2^221163232 is an apocalyptic number.

It is an amenable number.

221163232 is a deficient number, since it is larger than the sum of its proper divisors (216474584).

221163232 is a wasteful number, since it uses less digits than its factorization.

221163232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35290 (or 35282 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 221163232 is about 14871.5578202151. The cubic root of 221163232 is about 604.7431753765.

The spelling of 221163232 in words is "two hundred twenty-one million, one hundred sixty-three thousand, two hundred thirty-two".