221232302112 has 48 divisors (see below), whose sum is σ = 605984137920. Its totient is φ = 70537834752.

The previous prime is 221232302101. The next prime is 221232302129. The reversal of 221232302112 is 211203232122.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 50095687 + ... + 50100102.

It is an arithmetic number, because the mean of its divisors is an integer number (12624669540).

Almost surely, 2^221232302112 is an apocalyptic number.

It is an amenable number.

221232302112 is an abundant number, since it is smaller than the sum of its proper divisors (384751835808).

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

221232302112 is a wasteful number, since it uses less digits than its factorization.

221232302112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100195825 (or 100195817 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221232302112 its reverse (211203232122), we get a palindrome (432435534234).

The spelling of 221232302112 in words is "two hundred twenty-one billion, two hundred thirty-two million, three hundred two thousand, one hundred twelve".