221132 has 12 divisors (see below), whose sum is σ = 393960. Its totient is φ = 108576.

The previous prime is 221101. The next prime is 221159. The reversal of 221132 is 231122.

It is a happy number.

It is a super-2 number, since 2×221132² = 97798722848, which contains 22 as substring.

It is an unprimeable number.

221132 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233 + ... + 704.

It is an arithmetic number, because the mean of its divisors is an integer number (32830).

2²²¹¹³² is an apocalyptic number.

It is an amenable number.

221132 is a deficient number, since it is larger than the sum of its proper divisors (172828).

221132 is a wasteful number, since it uses less digits than its factorization.

221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 998 counting only the distinct ones).

The product of its digits is 24, while the sum is 11.

The square root of 221132 is about 470.2467437420. The cubic root of 221132 is about 60.4714707371.

Adding to 221132 its reverse (231122), we get a palindrome (452254).

It can be divided in two parts, 221 and 132, that added together give a palindrome (353).

The spelling of 221132 in words is "two hundred twenty-one thousand, one hundred thirty-two".