111221110110112 has 24 divisors (see below), whose sum is σ = 218979485315136. Its totient is φ = 55607272569792.

The previous prime is 111221110110067. The next prime is 111221110110119. The reversal of 111221110110112 is 211011011122111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (111221110110119) 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, 102027018 + ... + 103111369.

It is an arithmetic number, because the mean of its divisors is an integer number (9124145221464).

Almost surely, 2^{111221110110112} is an apocalyptic number.

It is an amenable number.

111221110110112 is a deficient number, since it is larger than the sum of its proper divisors (107758375205024).

111221110110112 is a wasteful number, since it uses less digits than its factorization.

111221110110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205155340 (or 205155332 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111221110110112 its reverse (211011011122111), we get a palindrome (322232121232223).

The spelling of 111221110110112 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred ten million, one hundred ten thousand, one hundred twelve".