111201102 has 48 divisors (see below), whose sum is σ = 251557488. Its totient is φ = 35468160.

The previous prime is 111201089. The next prime is 111201133. The reversal of 111201102 is 201102111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37693 + ... + 40535.

It is an arithmetic number, because the mean of its divisors is an integer number (5240781).

Almost surely, 2^111201102 is an apocalyptic number.

111201102 is an abundant number, since it is smaller than the sum of its proper divisors (140356386).

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

111201102 is a wasteful number, since it uses less digits than its factorization.

111201102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945 (or 2942 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 111201102 is about 10545.1933125951. The cubic root of 111201102 is about 480.8796110662.

Adding to 111201102 its reverse (201102111), we get a palindrome (312303213).

It can be divided in two parts, 111 and 201102, that multiplied together give a palindrome (22322322).

The spelling of 111201102 in words is "one hundred eleven million, two hundred one thousand, one hundred two".