221111230332 has 12 divisors (see below), whose sum is σ = 515926204136. Its totient is φ = 73703743440.

The previous prime is 221111230331. The next prime is 221111230349. The reversal of 221111230332 is 233032111122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 221111230299 and 221111230308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221111230331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9212967919 + ... + 9212967942.

Almost surely, 2^221111230332 is an apocalyptic number.

It is an amenable number.

221111230332 is an abundant number, since it is smaller than the sum of its proper divisors (294814973804).

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

221111230332 is a wasteful number, since it uses less digits than its factorization.

221111230332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18425935868 (or 18425935866 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 221111230332 its reverse (233032111122), we get a palindrome (454143341454).

The spelling of 221111230332 in words is "two hundred twenty-one billion, one hundred eleven million, two hundred thirty thousand, three hundred thirty-two".