21241341321200 has 240 divisors, whose sum is σ = 68518923841536. Its totient is φ = 6111394790400.

The previous prime is 21241341321191. The next prime is 21241341321241. The reversal of 21241341321200 is 212314314212.

It is a happy number.

It is a super-2 number, since 2×21241341321200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 21241341321200.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 26124752 + ... + 26925551.

Almost surely, 2^{21241341321200} is an apocalyptic number.

21241341321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21241341321200 is an abundant number, since it is smaller than the sum of its proper divisors (47277582520336).

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

21241341321200 is a wasteful number, since it uses less digits than its factorization.

21241341321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53050352 (or 53050341 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 21241341321200 its reverse (212314314212), we get a palindrome (21453655635412).

The spelling of 21241341321200 in words is "twenty-one trillion, two hundred forty-one billion, three hundred forty-one million, three hundred twenty-one thousand, two hundred".