321132132010221 has 16 divisors (see below), whose sum is σ = 489363731201664. Its totient is φ = 183496751668224.

The previous prime is 321132132010213. The next prime is 321132132010229. The reversal of 321132132010221 is 122010231231123.

It is an interprime number because it is at equal distance from previous prime (321132132010213) and next prime (321132132010229).

It is not a de Polignac number, because 321132132010221 - 2³ = 321132132010213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321132132010191 and 321132132010200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321132132010229) 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, 304618200 + ... + 305670593.

It is an arithmetic number, because the mean of its divisors is an integer number (30585233200104).

Almost surely, 2^{321132132010221} is an apocalyptic number.

It is an amenable number.

321132132010221 is a deficient number, since it is larger than the sum of its proper divisors (168231599191443).

321132132010221 is a wasteful number, since it uses less digits than its factorization.

321132132010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610313860.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 321132132010221 its reverse (122010231231123), we get a palindrome (443142363241344).

The spelling of 321132132010221 in words is "three hundred twenty-one trillion, one hundred thirty-two billion, one hundred thirty-two million, ten thousand, two hundred twenty-one".