132231220221 has 16 divisors (see below), whose sum is σ = 182634782400. Its totient is φ = 84999132288.

The previous prime is 132231220217. The next prime is 132231220229. The reversal of 132231220221 is 122022132231.

It is not a de Polignac number, because 132231220221 - 2² = 132231220217 is a prime.

It is a super-2 number, since 2×132231220221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132231220229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964056 + ... + 1092641.

It is an arithmetic number, because the mean of its divisors is an integer number (11414673900).

Almost surely, 2^132231220221 is an apocalyptic number.

It is an amenable number.

132231220221 is a deficient number, since it is larger than the sum of its proper divisors (50403562179).

132231220221 is a wasteful number, since it uses less digits than its factorization.

132231220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057468.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 132231220221 its reverse (122022132231), we get a palindrome (254253352452).

The spelling of 132231220221 in words is "one hundred thirty-two billion, two hundred thirty-one million, two hundred twenty thousand, two hundred twenty-one".