1324553221200 has 120 divisors (see below), whose sum is σ = 4628711484576. Its totient is φ = 321103808000.

The previous prime is 1324553221181. The next prime is 1324553221219. The reversal of 1324553221200 is 21223554231.

It is an interprime number because it is at equal distance from previous prime (1324553221181) and next prime (1324553221219).

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1324553221200² (a number of 25 digits) contains 22 as substring.

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

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, 50159271 + ... + 50185670.

Almost surely, 2^{1324553221200} is an apocalyptic number.

1324553221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324553221200 is an abundant number, since it is smaller than the sum of its proper divisors (3304158263376).

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

1324553221200 is a wasteful number, since it uses less digits than its factorization.

1324553221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100344973 (or 100344962 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1324553221200 its reverse (21223554231), we get a palindrome (1345776775431).

The spelling of 1324553221200 in words is "one trillion, three hundred twenty-four billion, five hundred fifty-three million, two hundred twenty-one thousand, two hundred".