111000122111 has 2 divisors, whose sum is σ = 111000122112. Its totient is φ = 111000122110.

The previous prime is 111000122089. The next prime is 111000122159. The reversal of 111000122111 is 111221000111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111000122111 - 2⁶ = 111000122047 is a prime.

It is a super-2 number, since 2×111000122111² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111000122092 and 111000122101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111000122161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500061055 + 55500061056.

It is an arithmetic number, because the mean of its divisors is an integer number (55500061056).

Almost surely, 2^111000122111 is an apocalyptic number.

111000122111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000122111 is an equidigital number, since it uses as much as digits as its factorization.

111000122111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111000122111 its reverse (111221000111), we get a palindrome (222221122222).

The spelling of 111000122111 in words is "one hundred eleven billion, one hundred twenty-two thousand, one hundred eleven".