221231214222112 has 24 divisors (see below), whose sum is σ = 436489663510656. Its totient is φ = 110376696505152.

The previous prime is 221231214222089. The next prime is 221231214222133. The reversal of 221231214222112 is 211222412132122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7465941388 + ... + 7465971019.

It is an arithmetic number, because the mean of its divisors is an integer number (18187069312944).

Almost surely, 2^{221231214222112} is an apocalyptic number.

It is an amenable number.

221231214222112 is a deficient number, since it is larger than the sum of its proper divisors (215258449288544).

221231214222112 is a wasteful number, since it uses less digits than its factorization.

221231214222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14931912880 (or 14931912872 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

Adding to 221231214222112 its reverse (211222412132122), we get a palindrome (432453626354234).

The spelling of 221231214222112 in words is "two hundred twenty-one trillion, two hundred thirty-one billion, two hundred fourteen million, two hundred twenty-two thousand, one hundred twelve".