221112010110 has 64 divisors (see below), whose sum is σ = 574951779072. Its totient is φ = 54204197376.

The previous prime is 221112010109. The next prime is 221112010121. The reversal of 221112010110 is 11010211122.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5019384 + ... + 5063243.

It is an arithmetic number, because the mean of its divisors is an integer number (8983621548).

Almost surely, 2^221112010110 is an apocalyptic number.

221112010110 is an abundant number, since it is smaller than the sum of its proper divisors (353839768962).

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

221112010110 is a wasteful number, since it uses less digits than its factorization.

221112010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082697.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221112010110 its reverse (11010211122), we get a palindrome (232122221232).

The spelling of 221112010110 in words is "two hundred twenty-one billion, one hundred twelve million, ten thousand, one hundred ten".