21441120024 has 16 divisors (see below), whose sum is σ = 53602800120. Its totient is φ = 7147040000.

The previous prime is 21441120013. The next prime is 21441120049. The reversal of 21441120024 is 42002114412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446689977 + ... + 446690024.

Almost surely, 2^21441120024 is an apocalyptic number.

21441120024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21441120024 is an abundant number, since it is smaller than the sum of its proper divisors (32161680096).

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

21441120024 is a wasteful number, since it uses less digits than its factorization.

21441120024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893380010 (or 893380006 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 21441120024 its reverse (42002114412), we get a palindrome (63443234436).

The spelling of 21441120024 in words is "twenty-one billion, four hundred forty-one million, one hundred twenty thousand, twenty-four".