221113103112 has 96 divisors (see below), whose sum is σ = 658433018880. Its totient is φ = 66476350080.

The previous prime is 221113103089. The next prime is 221113103143. The reversal of 221113103112 is 211301311122.

221113103112 is a `hidden beast` number, since 221 + 1 + 131 + 0 + 311 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 998563 + ... + 1199730.

It is an arithmetic number, because the mean of its divisors is an integer number (6858677280).

Almost surely, 2^221113103112 is an apocalyptic number.

221113103112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221113103112 is an abundant number, since it is smaller than the sum of its proper divisors (437319915768).

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

221113103112 is a wasteful number, since it uses less digits than its factorization.

221113103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198443 (or 2198436 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 221113103112 its reverse (211301311122), we get a palindrome (432414414234).

The spelling of 221113103112 in words is "two hundred twenty-one billion, one hundred thirteen million, one hundred three thousand, one hundred twelve".