21040331201200 has 60 divisors (see below), whose sum is σ = 50551743161920. Its totient is φ = 8415741646080.

The previous prime is 21040331201101. The next prime is 21040331201213. The reversal of 21040331201200 is 210213304012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7480306 + ... + 9901294.

Almost surely, 2^{21040331201200} is an apocalyptic number.

21040331201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21040331201200 is an abundant number, since it is smaller than the sum of its proper divisors (29511411960720).

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

21040331201200 is a wasteful number, since it uses less digits than its factorization.

21040331201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442734 (or 2442723 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21040331201200 its reverse (210213304012), we get a palindrome (21250544505212).

The spelling of 21040331201200 in words is "twenty-one trillion, forty billion, three hundred thirty-one million, two hundred one thousand, two hundred".