221332321112 has 16 divisors (see below), whose sum is σ = 474283545360. Its totient is φ = 94856709024.

The previous prime is 221332321109. The next prime is 221332321139. The reversal of 221332321112 is 211123233122.

221332321112 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976181383 + ... + 1976181494.

It is an arithmetic number, because the mean of its divisors is an integer number (29642721585).

Almost surely, 2^221332321112 is an apocalyptic number.

It is an amenable number.

221332321112 is an abundant number, since it is smaller than the sum of its proper divisors (252951224248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221332321112 is a wasteful number, since it uses less digits than its factorization.

221332321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952362890 (or 3952362886 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 221332321112 its reverse (211123233122), we get a palindrome (432455554234).

The spelling of 221332321112 in words is "two hundred twenty-one billion, three hundred thirty-two million, three hundred twenty-one thousand, one hundred twelve".