21404334322 has 16 divisors (see below), whose sum is σ = 36696284352. Its totient is φ = 9172501200.

The previous prime is 21404334319. The next prime is 21404334337. The reversal of 21404334322 is 22343340412.

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, 122697 + ... + 240547.

It is an arithmetic number, because the mean of its divisors is an integer number (2293517772).

Almost surely, 2^21404334322 is an apocalyptic number.

21404334322 is a deficient number, since it is larger than the sum of its proper divisors (15291950030).

21404334322 is a wasteful number, since it uses less digits than its factorization.

21404334322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130833.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 21404334322 its reverse (22343340412), we get a palindrome (43747674734).

The spelling of 21404334322 in words is "twenty-one billion, four hundred four million, three hundred thirty-four thousand, three hundred twenty-two".