1323002221200 has 360 divisors, whose sum is σ = 5034817322496. Its totient is φ = 319046784000.

The previous prime is 1323002221157. The next prime is 1323002221249. The reversal of 1323002221200 is 21222003231.

1323002221200 is a `hidden beast` number, since 1 + 323 + 0 + 0 + 222 + 120 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7476142 + ... + 7651058.

Almost surely, 2^{1323002221200} is an apocalyptic number.

1323002221200 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 1323002221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2517408661248).

1323002221200 is an abundant number, since it is smaller than the sum of its proper divisors (3711815101296).

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

1323002221200 is a wasteful number, since it uses less digits than its factorization.

1323002221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175143 (or 175129 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1323002221200 its reverse (21222003231), we get a palindrome (1344224224431).

The spelling of 1323002221200 in words is "one trillion, three hundred twenty-three billion, two million, two hundred twenty-one thousand, two hundred".