21404112230 has 16 divisors (see below), whose sum is σ = 38586961440. Its totient is φ = 8548409472.

The previous prime is 21404112181. The next prime is 21404112281. The reversal of 21404112230 is 3221140412.

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, 1647635 + ... + 1660574.

It is an arithmetic number, because the mean of its divisors is an integer number (2411685090).

Almost surely, 2^21404112230 is an apocalyptic number.

21404112230 is a deficient number, since it is larger than the sum of its proper divisors (17182849210).

21404112230 is a wasteful number, since it uses less digits than its factorization.

21404112230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308863.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21404112230 its reverse (3221140412), we get a palindrome (24625252642).

The spelling of 21404112230 in words is "twenty-one billion, four hundred four million, one hundred twelve thousand, two hundred thirty".