1215201043200 has 216 divisors, whose sum is σ = 4016118038800. Its totient is φ = 323592929280.

The previous prime is 1215201043187. The next prime is 1215201043207. The reversal of 1215201043200 is 23401025121.

It is not an unprimeable number, because it can be changed into a prime (1215201043207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13568166 + ... + 13657434.

Almost surely, 2^{1215201043200} is an apocalyptic number.

1215201043200 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 1215201043200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2008059019400).

1215201043200 is an abundant number, since it is smaller than the sum of its proper divisors (2800916995600).

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

1215201043200 is an equidigital number, since it uses as much as digits as its factorization.

1215201043200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90007 (or 89988 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 1215201043200 its reverse (23401025121), we get a palindrome (1238602068321).

The spelling of 1215201043200 in words is "one trillion, two hundred fifteen billion, two hundred one million, forty-three thousand, two hundred".