221100232112 has 20 divisors (see below), whose sum is σ = 442200465216. Its totient is φ = 106983983040.

The previous prime is 221100232103. The next prime is 221100232117. The reversal of 221100232112 is 211232001122.

221100232112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

221100232112 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (221100232117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222882803 + ... + 222883794.

Almost surely, 2^221100232112 is an apocalyptic number.

It is an amenable number.

221100232112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221100232112 is a wasteful number, since it uses less digits than its factorization.

221100232112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445766636 (or 445766630 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221100232112 its reverse (211232001122), we get a palindrome (432332233234).

The spelling of 221100232112 in words is "two hundred twenty-one billion, one hundred million, two hundred thirty-two thousand, one hundred twelve".