1322201313312 has 288 divisors, whose sum is σ = 3861890488512. Its totient is φ = 392770560000.

The previous prime is 1322201313287. The next prime is 1322201313317. The reversal of 1322201313312 is 2133131022231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1322201313317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4705342612 + ... + 4705342892.

It is an arithmetic number, because the mean of its divisors is an integer number (13409341974).

Almost surely, 2^{1322201313312} is an apocalyptic number.

1322201313312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322201313312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930945244256).

1322201313312 is an abundant number, since it is smaller than the sum of its proper divisors (2539689175200).

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

1322201313312 is a wasteful number, since it uses less digits than its factorization.

1322201313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1322201313312 its reverse (2133131022231), we get a palindrome (3455332335543).

The spelling of 1322201313312 in words is "one trillion, three hundred twenty-two billion, two hundred one million, three hundred thirteen thousand, three hundred twelve".