21404114104 has 16 divisors (see below), whose sum is σ = 40439072520. Its totient is φ = 10620361440.

The previous prime is 21404114059. The next prime is 21404114117. The reversal of 21404114104 is 40141140412.

It is a super-2 number, since 2×21404114104² (a number of 21 digits) contains 22 as substring.

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, 10210839 + ... + 10212934.

Almost surely, 2^21404114104 is an apocalyptic number.

It is an amenable number.

21404114104 is a deficient number, since it is larger than the sum of its proper divisors (19034958416).

21404114104 is a wasteful number, since it uses less digits than its factorization.

21404114104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20423910 (or 20423906 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21404114104 its reverse (40141140412), we get a palindrome (61545254516).

The spelling of 21404114104 in words is "twenty-one billion, four hundred four million, one hundred fourteen thousand, one hundred four".