132021221 has 2 divisors, whose sum is σ = 132021222. Its totient is φ = 132021220.

The previous prime is 132021203. The next prime is 132021229. The reversal of 132021221 is 122120231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131928196 + 93025 = 11486^2 + 305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132021221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 132021196 and 132021205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132021229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66010610 + 66010611.

It is an arithmetic number, because the mean of its divisors is an integer number (66010611).

Almost surely, 2^132021221 is an apocalyptic number.

It is an amenable number.

132021221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132021221 is an equidigital number, since it uses as much as digits as its factorization.

132021221 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 14.

The square root of 132021221 is about 11490.0487814456. The cubic root of 132021221 is about 509.1916207978.

Adding to 132021221 its reverse (122120231), we get a palindrome (254141452).

The spelling of 132021221 in words is "one hundred thirty-two million, twenty-one thousand, two hundred twenty-one".