132020231221 has 2 divisors, whose sum is σ = 132020231222. Its totient is φ = 132020231220.

The previous prime is 132020231207. The next prime is 132020231261. The reversal of 132020231221 is 122132020231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88098550596 + 43921680625 = 296814^2 + 209575^2 .

It is a cyclic number.

It is not a de Polignac number, because 132020231221 - 2⁷ = 132020231093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132020231261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66010115610 + 66010115611.

It is an arithmetic number, because the mean of its divisors is an integer number (66010115611).

Almost surely, 2^132020231221 is an apocalyptic number.

It is an amenable number.

132020231221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132020231221 is an equidigital number, since it uses as much as digits as its factorization.

132020231221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 132020231221 its reverse (122132020231), we get a palindrome (254152251452).

The spelling of 132020231221 in words is "one hundred thirty-two billion, twenty million, two hundred thirty-one thousand, two hundred twenty-one".