132221321 has 4 divisors (see below), whose sum is σ = 132274944. Its totient is φ = 132167700.

The previous prime is 132221317. The next prime is 132221333. The reversal of 132221321 is 123122231.

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 132221321 - 2² = 132221317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132221321.

It is not an unprimeable number, because it can be changed into a prime (132221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22925 + ... + 28106.

It is an arithmetic number, because the mean of its divisors is an integer number (33068736).

Almost surely, 2^132221321 is an apocalyptic number.

It is an amenable number.

132221321 is a deficient number, since it is larger than the sum of its proper divisors (53623).

132221321 is an equidigital number, since it uses as much as digits as its factorization.

132221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53622.

The product of its digits is 144, while the sum is 17.

The square root of 132221321 is about 11498.7530193495. The cubic root of 132221321 is about 509.4487456479.

Adding to 132221321 its reverse (123122231), we get a palindrome (255343552).

The spelling of 132221321 in words is "one hundred thirty-two million, two hundred twenty-one thousand, three hundred twenty-one".