21214114404 has 48 divisors (see below), whose sum is σ = 57206620800. Its totient is φ = 5993070336.

The previous prime is 21214114367. The next prime is 21214114409. The reversal of 21214114404 is 40441141212.

It is not an unprimeable number, because it can be changed into a prime (21214114409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411339 + ... + 1426290.

It is an arithmetic number, because the mean of its divisors is an integer number (1191804600).

Almost surely, 2^21214114404 is an apocalyptic number.

It is an amenable number.

21214114404 is an abundant number, since it is smaller than the sum of its proper divisors (35992506396).

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

21214114404 is a wasteful number, since it uses less digits than its factorization.

21214114404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837732 (or 2837730 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 21214114404 its reverse (40441141212), we get a palindrome (61655255616).

The spelling of 21214114404 in words is "twenty-one billion, two hundred fourteen million, one hundred fourteen thousand, four hundred four".