21227114576 has 20 divisors (see below), whose sum is σ = 41272870272. Its totient is φ = 10576051296.

The previous prime is 21227114567. The next prime is 21227114591. The reversal of 21227114576 is 67541172212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339456 + ... + 2348511.

Almost surely, 2^21227114576 is an apocalyptic number.

It is an amenable number.

21227114576 is a deficient number, since it is larger than the sum of its proper divisors (20045755696).

21227114576 is a wasteful number, since it uses less digits than its factorization.

21227114576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688258 (or 4688252 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

Adding to 21227114576 its reverse (67541172212), we get a palindrome (88768286788).

The spelling of 21227114576 in words is "twenty-one billion, two hundred twenty-seven million, one hundred fourteen thousand, five hundred seventy-six".