321220220411132 has 120 divisors (see below), whose sum is σ = 658833989861376. Its totient is φ = 137026078134624.

The previous prime is 321220220411047. The next prime is 321220220411147. The reversal of 321220220411132 is 231114022022123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25286951093 + ... + 25286963795.

Almost surely, 2^{321220220411132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321220220411132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329416994930688).

321220220411132 is an abundant number, since it is smaller than the sum of its proper divisors (337613769450244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321220220411132 is a wasteful number, since it uses less digits than its factorization.

321220220411132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24765 (or 24742 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 321220220411132 its reverse (231114022022123), we get a palindrome (552334242433255).

The spelling of 321220220411132 in words is "three hundred twenty-one trillion, two hundred twenty billion, two hundred twenty million, four hundred eleven thousand, one hundred thirty-two".