132311322221 has 4 divisors (see below), whose sum is σ = 142489116252. Its totient is φ = 122133528192.

The previous prime is 132311322211. The next prime is 132311322233. The reversal of 132311322221 is 122223113231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122223113231 = 557 ⋅219431083.

It can be written as a sum of positive squares in 2 ways, for example, as 78392160196 + 53919162025 = 279986^2 + 232205^2 .

It is not a de Polignac number, because 132311322221 - 2²⁶ = 132244213357 is a prime.

It is a super-3 number, since 3×132311322221³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132311322211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5088896996 + ... + 5088897021.

It is an arithmetic number, because the mean of its divisors is an integer number (35622279063).

Almost surely, 2^132311322221 is an apocalyptic number.

It is an amenable number.

132311322221 is a deficient number, since it is larger than the sum of its proper divisors (10177794031).

132311322221 is a wasteful number, since it uses less digits than its factorization.

132311322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10177794030.

The product of its digits is 864, while the sum is 23.

Adding to 132311322221 its reverse (122223113231), we get a palindrome (254534435452).

The spelling of 132311322221 in words is "one hundred thirty-two billion, three hundred eleven million, three hundred twenty-two thousand, two hundred twenty-one".