221200112210110 has 24 divisors (see below), whose sum is σ = 437647164160248. Its totient is φ = 80436404439600.

The previous prime is 221200112210089. The next prime is 221200112210111. The reversal of 221200112210110 is 11012211002122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200112210111) 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 11 ways as a sum of consecutive naturals, for example, 91405003836 + ... + 91405006255.

It is an arithmetic number, because the mean of its divisors is an integer number (18235298506677).

Almost surely, 2^{221200112210110} is an apocalyptic number.

221200112210110 is a deficient number, since it is larger than the sum of its proper divisors (216447051950138).

221200112210110 is a wasteful number, since it uses less digits than its factorization.

221200112210110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182810010120 (or 182810010109 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221200112210110 its reverse (11012211002122), we get a palindrome (232212323212232).

The spelling of 221200112210110 in words is "two hundred twenty-one trillion, two hundred billion, one hundred twelve million, two hundred ten thousand, one hundred ten".