132240221 has 2 divisors, whose sum is σ = 132240222. Its totient is φ = 132240220.

The previous prime is 132240193. The next prime is 132240239. The reversal of 132240221 is 122042231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81631225 + 50608996 = 9035^2 + 7114^2 .

It is a cyclic number.

It is not a de Polignac number, because 132240221 - 2¹⁰ = 132239197 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132240221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132240421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66120110 + 66120111.

It is an arithmetic number, because the mean of its divisors is an integer number (66120111).

Almost surely, 2^132240221 is an apocalyptic number.

It is an amenable number.

132240221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132240221 is an equidigital number, since it uses as much as digits as its factorization.

132240221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 132240221 is about 11499.5748182270. The cubic root of 132240221 is about 509.4730183912.

Adding to 132240221 its reverse (122042231), we get a palindrome (254282452).

The spelling of 132240221 in words is "one hundred thirty-two million, two hundred forty thousand, two hundred twenty-one".