111110121111102 has 32 divisors (see below), whose sum is σ = 228228595346304. Its totient is φ = 36035335908000.

The previous prime is 111110121111049. The next prime is 111110121111127. The reversal of 111110121111102 is 201111121011111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18917077 + ... + 24084767.

It is an arithmetic number, because the mean of its divisors is an integer number (7132143604572).

Almost surely, 2^{111110121111102} is an apocalyptic number.

111110121111102 is an abundant number, since it is smaller than the sum of its proper divisors (117118474235202).

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

111110121111102 is a wasteful number, since it uses less digits than its factorization.

111110121111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264584.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 111110121111102 its reverse (201111121011111), we get a palindrome (312221242122213).

Subtracting 111110121111102 from its reverse (201111121011111), we obtain a palindrome (90000999900009).

The spelling of 111110121111102 in words is "one hundred eleven trillion, one hundred ten billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".