132321104531221 has 4 divisors (see below), whose sum is σ = 132615806323500. Its totient is φ = 132026402738944.

The previous prime is 132321104531191. The next prime is 132321104531249. The reversal of 132321104531221 is 122135401123231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52352619431121 + 79968485100100 = 7235511^2 + 8942510^2 .

It is a cyclic number.

It is not a de Polignac number, because 132321104531221 - 2²¹ = 132321102434069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132321104531321) 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, 147350895466 + ... + 147350896363.

It is an arithmetic number, because the mean of its divisors is an integer number (33153951580875).

Almost surely, 2^{132321104531221} is an apocalyptic number.

It is an amenable number.

132321104531221 is a deficient number, since it is larger than the sum of its proper divisors (294701792279).

132321104531221 is an equidigital number, since it uses as much as digits as its factorization.

132321104531221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294701792278.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 132321104531221 its reverse (122135401123231), we get a palindrome (254456505654452).

The spelling of 132321104531221 in words is "one hundred thirty-two trillion, three hundred twenty-one billion, one hundred four million, five hundred thirty-one thousand, two hundred twenty-one".