21588412322 has 16 divisors (see below), whose sum is σ = 33181400952. Its totient is φ = 10528087680.

The previous prime is 21588412301. The next prime is 21588412393. The reversal of 21588412322 is 22321488512.

It can be written as a sum of positive squares in 4 ways, for example, as 16952300401 + 4636111921 = 130201^2 + 68089^2 .

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, 287588 + ... + 354800.

Almost surely, 2^21588412322 is an apocalyptic number.

21588412322 is a deficient number, since it is larger than the sum of its proper divisors (11592988630).

21588412322 is a wasteful number, since it uses less digits than its factorization.

21588412322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71173.

The product of its digits is 61440, while the sum is 38.

The spelling of 21588412322 in words is "twenty-one billion, five hundred eighty-eight million, four hundred twelve thousand, three hundred twenty-two".