221202321112 has 16 divisors (see below), whose sum is σ = 415712220840. Its totient is φ = 110345728896.

The previous prime is 221202321071. The next prime is 221202321121. The reversal of 221202321112 is 211123202122.

221202321112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221202321112.

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, 31925278 + ... + 31932205.

Almost surely, 2^221202321112 is an apocalyptic number.

It is an amenable number.

221202321112 is a deficient number, since it is larger than the sum of its proper divisors (194509899728).

221202321112 is a wasteful number, since it uses less digits than its factorization.

221202321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63857922 (or 63857918 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221202321112 its reverse (211123202122), we get a palindrome (432325523234).

The spelling of 221202321112 in words is "two hundred twenty-one billion, two hundred two million, three hundred twenty-one thousand, one hundred twelve".