111111122111102 has 8 divisors (see below), whose sum is σ = 166666770868800. Its totient is φ = 55555531821504.

The previous prime is 111111122111069. The next prime is 111111122111117. The reversal of 111111122111102 is 201111221111111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9509102 + ... + 17681777.

It is an arithmetic number, because the mean of its divisors is an integer number (20833346358600).

Almost surely, 2^{111111122111102} is an apocalyptic number.

111111122111102 is a deficient number, since it is larger than the sum of its proper divisors (55555648757698).

111111122111102 is a wasteful number, since it uses less digits than its factorization.

111111122111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29234050.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 111111122111102 its reverse (201111221111111), we get a palindrome (312222343222213).

Subtracting 111111122111102 from its reverse (201111221111111), we obtain a palindrome (90000099000009).

The spelling of 111111122111102 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty-two million, one hundred eleven thousand, one hundred two".