221113101112 has 32 divisors (see below), whose sum is σ = 423190694880. Its totient is φ = 108269965440.

The previous prime is 221113101109. The next prime is 221113101133. The reversal of 221113101112 is 211101311122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252588 + ... + 711355.

It is an arithmetic number, because the mean of its divisors is an integer number (13224709215).

Almost surely, 2^221113101112 is an apocalyptic number.

It is an amenable number.

221113101112 is a deficient number, since it is larger than the sum of its proper divisors (202077593768).

221113101112 is a wasteful number, since it uses less digits than its factorization.

221113101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964543 (or 964539 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 221113101112 its reverse (211101311122), we get a palindrome (432214412234).

The spelling of 221113101112 in words is "two hundred twenty-one billion, one hundred thirteen million, one hundred one thousand, one hundred twelve".