1204201321200 has 180 divisors, whose sum is σ = 4180095534888. Its totient is φ = 321029491200.

The previous prime is 1204201321177. The next prime is 1204201321201. The reversal of 1204201321200 is 21231024021.

It is a happy number.

1204201321200 is a `hidden beast` number, since 1 + 20 + 420 + 1 + 3 + 21 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204201321201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13191715 + ... + 13282685.

Almost surely, 2^{1204201321200} is an apocalyptic number.

1204201321200 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 1204201321200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2090047767444).

1204201321200 is an abundant number, since it is smaller than the sum of its proper divisors (2975894213688).

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

1204201321200 is a wasteful number, since it uses less digits than its factorization.

1204201321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94672 (or 94658 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1204201321200 its reverse (21231024021), we get a palindrome (1225432345221).

The spelling of 1204201321200 in words is "one trillion, two hundred four billion, two hundred one million, three hundred twenty-one thousand, two hundred".