21241541200 has 60 divisors (see below), whose sum is σ = 55672159968. Its totient is φ = 7724195200.

The previous prime is 21241541183. The next prime is 21241541201. The reversal of 21241541200 is 214514212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21241541201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2409412 + ... + 2418211.

Almost surely, 2^21241541200 is an apocalyptic number.

21241541200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21241541200 is an abundant number, since it is smaller than the sum of its proper divisors (34430618768).

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

21241541200 is a wasteful number, since it uses less digits than its factorization.

21241541200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827652 (or 4827641 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The spelling of 21241541200 in words is "twenty-one billion, two hundred forty-one million, five hundred forty-one thousand, two hundred".