111011122011 has 16 divisors (see below), whose sum is σ = 148156231680. Its totient is φ = 73936756320.

The previous prime is 111011122007. The next prime is 111011122037. The reversal of 111011122011 is 110221110111.

It is not a de Polignac number, because 111011122011 - 2² = 111011122007 is a prime.

It is a super-2 number, since 2×111011122011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111011122081) 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, 20170086 + ... + 20175588.

It is an arithmetic number, because the mean of its divisors is an integer number (9259764480).

Almost surely, 2^111011122011 is an apocalyptic number.

111011122011 is a deficient number, since it is larger than the sum of its proper divisors (37145109669).

111011122011 is a wasteful number, since it uses less digits than its factorization.

111011122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111011122011 its reverse (110221110111), we get a palindrome (221232232122).

The spelling of 111011122011 in words is "one hundred eleven billion, eleven million, one hundred twenty-two thousand, eleven".