111202111221102 has 48 divisors (see below), whose sum is σ = 262842381313200. Its totient is φ = 33697477728000.

The previous prime is 111202111221079. The next prime is 111202111221107. The reversal of 111202111221102 is 201122111202111.

It is a happy number.

111202111221102 is a `hidden beast` number, since 11 + 120 + 211 + 1 + 221 + 102 = 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 (111202111221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57579024 + ... + 59478972.

It is an arithmetic number, because the mean of its divisors is an integer number (5475882944025).

Almost surely, 2^{111202111221102} is an apocalyptic number.

111202111221102 is an abundant number, since it is smaller than the sum of its proper divisors (151640270092098).

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

111202111221102 is a wasteful number, since it uses less digits than its factorization.

111202111221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195569 (or 2195566 counting only the distinct ones).

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

Adding to 111202111221102 its reverse (201122111202111), we get a palindrome (312324222423213).

The spelling of 111202111221102 in words is "one hundred eleven trillion, two hundred two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred two".