111200102012111 has 16 divisors (see below), whose sum is σ = 127374406548480. Its totient is φ = 95097994103520.

The previous prime is 111200102012099. The next prime is 111200102012123. The reversal of 111200102012111 is 111210201002111.

It is an interprime number because it is at equal distance from previous prime (111200102012099) and next prime (111200102012123).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111200102012111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200102012191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23172101 + ... + 27556241.

It is an arithmetic number, because the mean of its divisors is an integer number (7960900409280).

Almost surely, 2^{111200102012111} is an apocalyptic number.

111200102012111 is a deficient number, since it is larger than the sum of its proper divisors (16174304536369).

111200102012111 is an equidigital number, since it uses as much as digits as its factorization.

111200102012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392374.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111200102012111 its reverse (111210201002111), we get a palindrome (222410303014222).

The spelling of 111200102012111 in words is "one hundred eleven trillion, two hundred billion, one hundred two million, twelve thousand, one hundred eleven".