111112122102102 has 48 divisors (see below), whose sum is σ = 262834313491152. Its totient is φ = 33643973204160.

The previous prime is 111112122102089. The next prime is 111112122102103. The reversal of 111112122102102 is 201201221211111.

It is a happy number.

111112122102102 is a `hidden beast` number, since 1 + 111 + 121 + 221 + 0 + 210 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112122102103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219470073 + ... + 219975764.

It is an arithmetic number, because the mean of its divisors is an integer number (5475714864399).

Almost surely, 2^{111112122102102} is an apocalyptic number.

111112122102102 is an abundant number, since it is smaller than the sum of its proper divisors (151722191389050).

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

111112122102102 is a wasteful number, since it uses less digits than its factorization.

111112122102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439447133 (or 439447130 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111112122102102 its reverse (201201221211111), we get a palindrome (312313343313213).

The spelling of 111112122102102 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred twenty-two million, one hundred two thousand, one hundred two".