1445504221200 has 240 divisors, whose sum is σ = 5000226242816. Its totient is φ = 354845491200.

The previous prime is 1445504221177. The next prime is 1445504221243. The reversal of 1445504221200 is 21224055441.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5598960 + ... + 5851440.

Almost surely, 2^{1445504221200} is an apocalyptic number.

1445504221200 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 1445504221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2500113121408).

1445504221200 is an abundant number, since it is smaller than the sum of its proper divisors (3554722021616).

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

1445504221200 is a wasteful number, since it uses less digits than its factorization.

1445504221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252882 (or 252871 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1445504221200 its reverse (21224055441), we get a palindrome (1466728276641).

The spelling of 1445504221200 in words is "one trillion, four hundred forty-five billion, five hundred four million, two hundred twenty-one thousand, two hundred".