132315891221 has 4 divisors (see below), whose sum is σ = 133990776000. Its totient is φ = 130641006444.

The previous prime is 132315891203. The next prime is 132315891317. The reversal of 132315891221 is 122198513231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 132315891221 - 2¹⁸ = 132315629077 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 (132315881221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837442271 + ... + 837442428.

It is an arithmetic number, because the mean of its divisors is an integer number (33497694000).

Almost surely, 2^132315891221 is an apocalyptic number.

It is an amenable number.

132315891221 is a deficient number, since it is larger than the sum of its proper divisors (1674884779).

132315891221 is an equidigital number, since it uses as much as digits as its factorization.

132315891221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674884778.

The product of its digits is 25920, while the sum is 38.

The spelling of 132315891221 in words is "one hundred thirty-two billion, three hundred fifteen million, eight hundred ninety-one thousand, two hundred twenty-one".