132220221 has 48 divisors (see below), whose sum is σ = 215944704. Its totient is φ = 70473888.

The previous prime is 132220201. The next prime is 132220223. The reversal of 132220221 is 122022231.

It is a happy number.

It is not a de Polignac number, because 132220221 - 2⁶ = 132220157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132220223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 811086 + ... + 811248.

It is an arithmetic number, because the mean of its divisors is an integer number (4498848).

Almost surely, 2^132220221 is an apocalyptic number.

It is an amenable number.

132220221 is a deficient number, since it is larger than the sum of its proper divisors (83724483).

132220221 is a wasteful number, since it uses less digits than its factorization.

132220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 132220221 is about 11498.7051879766. The cubic root of 132220221 is about 509.4473328773.

Adding to 132220221 its reverse (122022231), we get a palindrome (254242452).

The spelling of 132220221 in words is "one hundred thirty-two million, two hundred twenty thousand, two hundred twenty-one".