132221 has 4 divisors (see below), whose sum is σ = 139200. Its totient is φ = 125244.

The previous prime is 132199. The next prime is 132229. The reversal of 132221 is 122231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 132221 - 2⁶ = 132157 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3461 + ... + 3498.

It is an arithmetic number, because the mean of its divisors is an integer number (34800).

2¹³²²²¹ is an apocalyptic number.

It is an amenable number.

132221 is a deficient number, since it is larger than the sum of its proper divisors (6979).

132221 is an equidigital number, since it uses as much as digits as its factorization.

132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978.

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

The square root of 132221 is about 363.6220565367. The cubic root of 132221 is about 50.9448333377.

Adding to 132221 its reverse (122231), we get a palindrome (254452).

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

The spelling of 132221 in words is "one hundred thirty-two thousand, two hundred twenty-one".