111121220111102 has 16 divisors (see below), whose sum is σ = 166739517317232. Its totient is φ = 55541381794560.

The previous prime is 111121220111093. The next prime is 111121220111113. The reversal of 111121220111102 is 201111022121111.

It is a congruent number.

It is an unprimeable number.

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, 328361528 + ... + 328699764.

It is an arithmetic number, because the mean of its divisors is an integer number (10421219832327).

Almost surely, 2^{111121220111102} is an apocalyptic number.

111121220111102 is a deficient number, since it is larger than the sum of its proper divisors (55618297206130).

111121220111102 is a wasteful number, since it uses less digits than its factorization.

111121220111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394603.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111121220111102 its reverse (201111022121111), we get a palindrome (312232242232213).

The spelling of 111121220111102 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred twenty million, one hundred eleven thousand, one hundred two".