111102111220112 has 20 divisors (see below), whose sum is σ = 215398949899980. Its totient is φ = 55515285439488.

The previous prime is 111102111220103. The next prime is 111102111220123. The reversal of 111102111220112 is 211022111201111.

It can be written as a sum of positive squares in 2 ways, for example, as 11334695823616 + 99767415396496 = 3366704^2 + 9988364^2 .

It is a super-2 number, since 2×111102111220112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235610037 + ... + 2235659732.

It is an arithmetic number, because the mean of its divisors is an integer number (10769947494999).

Almost surely, 2^{111102111220112} is an apocalyptic number.

It is an amenable number.

111102111220112 is a deficient number, since it is larger than the sum of its proper divisors (104296838679868).

111102111220112 is a wasteful number, since it uses less digits than its factorization.

111102111220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471271330 (or 4471271324 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111102111220112 its reverse (211022111201111), we get a palindrome (322124222421223).

The spelling of 111102111220112 in words is "one hundred eleven trillion, one hundred two billion, one hundred eleven million, two hundred twenty thousand, one hundred twelve".