1322211100320 has 288 divisors, whose sum is σ = 4923347292864. Its totient is φ = 320463360000.

The previous prime is 1322211100319. The next prime is 1322211100339. The reversal of 1322211100320 is 230011122231.

1322211100320 is a `hidden beast` number, since 1 + 32 + 2 + 211 + 100 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1322211100293 and 1322211100302.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110889879 + ... + 110901801.

It is an arithmetic number, because the mean of its divisors is an integer number (17094955878).

Almost surely, 2^{1322211100320} is an apocalyptic number.

1322211100320 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 1322211100320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2461673646432).

1322211100320 is an abundant number, since it is smaller than the sum of its proper divisors (3601136192544).

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

1322211100320 is a wasteful number, since it uses less digits than its factorization.

1322211100320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18956 (or 18945 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1322211100320 its reverse (230011122231), we get a palindrome (1552222222551).

The spelling of 1322211100320 in words is "one trillion, three hundred twenty-two billion, two hundred eleven million, one hundred thousand, three hundred twenty".