221032 has 16 divisors (see below), whose sum is σ = 473760. Its totient is φ = 94704.

The previous prime is 221021. The next prime is 221047. The reversal of 221032 is 230122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1918 + ... + 2029.

It is an arithmetic number, because the mean of its divisors is an integer number (29610).

2²²¹⁰³² is an apocalyptic number.

It is an amenable number.

221032 is an abundant number, since it is smaller than the sum of its proper divisors (252728).

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

221032 is a wasteful number, since it uses less digits than its factorization.

221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 221032 is about 470.1404045602. The cubic root of 221032 is about 60.4623539218.

Adding to 221032 its reverse (230122), we get a palindrome (451154).

The spelling of 221032 in words is "two hundred twenty-one thousand, thirty-two".