1322242400000 has 216 divisors, whose sum is σ = 3442418608608. Its totient is φ = 505894400000.

The previous prime is 1322242399979. The next prime is 1322242400041. The reversal of 1322242400000 is 42422231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18364070 + ... + 18435930.

It is an arithmetic number, because the mean of its divisors is an integer number (15937123188).

Almost surely, 2^{1322242400000} is an apocalyptic number.

1322242400000 is a gapful number since it is divisible by the number (10) 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 1322242400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1721209304304).

1322242400000 is an abundant number, since it is smaller than the sum of its proper divisors (2120176208608).

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

1322242400000 is an frugal number, since it uses more digits than its factorization.

1322242400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71925 (or 71891 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1322242400000 its reverse (42422231), we get a palindrome (1322284822231).

The spelling of 1322242400000 in words is "one trillion, three hundred twenty-two billion, two hundred forty-two million, four hundred thousand".