21441102424 has 32 divisors (see below), whose sum is σ = 45952642080. Its totient is φ = 9187559424.

The previous prime is 21441102413. The next prime is 21441102433. The reversal of 21441102424 is 42420114412.

It is a happy number.

It is a super-3 number, since 3×21441102424³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363274 + ... + 418150.

It is an arithmetic number, because the mean of its divisors is an integer number (1436020065).

Almost surely, 2^21441102424 is an apocalyptic number.

It is an amenable number.

21441102424 is an abundant number, since it is smaller than the sum of its proper divisors (24511539656).

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

21441102424 is a wasteful number, since it uses less digits than its factorization.

21441102424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61867 (or 61863 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 21441102424 its reverse (42420114412), we get a palindrome (63861216836).

The spelling of 21441102424 in words is "twenty-one billion, four hundred forty-one million, one hundred two thousand, four hundred twenty-four".