132020221 has 2 divisors, whose sum is σ = 132020222. Its totient is φ = 132020220.

The previous prime is 132020219. The next prime is 132020243. The reversal of 132020221 is 122020231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132020100 + 121 = 11490^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 132020221 - 2¹ = 132020219 is a prime.

Together with 132020219, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132020261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66010110 + 66010111.

It is an arithmetic number, because the mean of its divisors is an integer number (66010111).

Almost surely, 2^132020221 is an apocalyptic number.

It is an amenable number.

132020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132020221 is an equidigital number, since it uses as much as digits as its factorization.

132020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 132020221 is about 11490.0052654470. The cubic root of 132020221 is about 509.1903351638.

Adding to 132020221 its reverse (122020231), we get a palindrome (254040452).

The spelling of 132020221 in words is "one hundred thirty-two million, twenty thousand, two hundred twenty-one".