1322320213312 has 112 divisors (see below), whose sum is σ = 3096963072000. Its totient is φ = 548180928000.

The previous prime is 1322320213297. The next prime is 1322320213321. The reversal of 1322320213312 is 2133120232231.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32630439 + ... + 32670937.

It is an arithmetic number, because the mean of its divisors is an integer number (27651456000).

Almost surely, 2^{1322320213312} 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 1322320213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548481536000).

1322320213312 is an abundant number, since it is smaller than the sum of its proper divisors (1774642858688).

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

1322320213312 is a wasteful number, since it uses less digits than its factorization.

1322320213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42900 (or 42890 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1322320213312 its reverse (2133120232231), we get a palindrome (3455440445543).

The spelling of 1322320213312 in words is "one trillion, three hundred twenty-two billion, three hundred twenty million, two hundred thirteen thousand, three hundred twelve".