111101120122111 has 40 divisors (see below), whose sum is σ = 139560443356320. Its totient is φ = 86537167578624.

The previous prime is 111101120122099. The next prime is 111101120122147. The reversal of 111101120122111 is 111221021101111.

It is a de Polignac number, because none of the positive numbers 2^k-111101120122111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101120122411) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13678365 + ... + 20231161.

It is an arithmetic number, because the mean of its divisors is an integer number (3489011083908).

Almost surely, 2^{111101120122111} is an apocalyptic number.

111101120122111 is a deficient number, since it is larger than the sum of its proper divisors (28459323234209).

111101120122111 is an frugal number, since it uses more digits than its factorization.

111101120122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552901 (or 6552850 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111101120122111 its reverse (111221021101111), we get a palindrome (222322141223222).

The spelling of 111101120122111 in words is "one hundred eleven trillion, one hundred one billion, one hundred twenty million, one hundred twenty-two thousand, one hundred eleven".