10000111122 has 80 divisors (see below), whose sum is σ = 24400569600. Its totient is φ = 3049008480.

The previous prime is 10000111081. The next prime is 10000111123. The reversal of 10000111122 is 22111100001.

It is a happy number.

It is a super-3 number, since 3×10000111122³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10000111123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33247 + ... + 145277.

It is an arithmetic number, because the mean of its divisors is an integer number (305007120).

Almost surely, 2^10000111122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10000111122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12200284800).

10000111122 is an abundant number, since it is smaller than the sum of its proper divisors (14400458478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10000111122 is a wasteful number, since it uses less digits than its factorization.

10000111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112093 (or 112084 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10000111122 its reverse (22111100001), we get a palindrome (32111211123).

The spelling of 10000111122 in words is "ten billion, one hundred eleven thousand, one hundred twenty-two".