111001122122 has 32 divisors (see below), whose sum is σ = 188845642944. Its totient is φ = 48489724800.

The previous prime is 111001122121. The next prime is 111001122139. The reversal of 111001122122 is 221221100111.

It is a super-2 number, since 2×111001122122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111001122097 and 111001122106.

It is not an unprimeable number, because it can be changed into a prime (111001122121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857933 + ... + 978800.

It is an arithmetic number, because the mean of its divisors is an integer number (5901426342).

Almost surely, 2^111001122122 is an apocalyptic number.

111001122122 is a deficient number, since it is larger than the sum of its proper divisors (77844520822).

111001122122 is a wasteful number, since it uses less digits than its factorization.

111001122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836854.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111001122122 its reverse (221221100111), we get a palindrome (332222222233).

The spelling of 111001122122 in words is "one hundred eleven billion, one million, one hundred twenty-two thousand, one hundred twenty-two".