111120021102 has 16 divisors (see below), whose sum is σ = 222257237760. Its totient is φ = 37037141112.

The previous prime is 111120021071. The next prime is 111120021109. The reversal of 111120021102 is 201120021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120021109) 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 7 ways as a sum of consecutive naturals, for example, 631702 + ... + 788217.

It is an arithmetic number, because the mean of its divisors is an integer number (13891077360).

Almost surely, 2^111120021102 is an apocalyptic number.

111120021102 is an abundant number, since it is smaller than the sum of its proper divisors (111137216658).

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

111120021102 is a wasteful number, since it uses less digits than its factorization.

111120021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432967.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111120021102 its reverse (201120021111), we get a palindrome (312240042213).

Subtracting 111120021102 from its reverse (201120021111), we obtain a palindrome (90000000009).

The spelling of 111120021102 in words is "one hundred eleven billion, one hundred twenty million, twenty-one thousand, one hundred two".