11222113122 has 48 divisors (see below), whose sum is σ = 27439663680. Its totient is φ = 3283375200.

The previous prime is 11222113079. The next prime is 11222113159. The reversal of 11222113122 is 22131122211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11222113095 and 11222113104.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 971454 + ... + 982937.

It is an arithmetic number, because the mean of its divisors is an integer number (571659660).

Almost surely, 2^11222113122 is an apocalyptic number.

11222113122 is an abundant number, since it is smaller than the sum of its proper divisors (16217550558).

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

11222113122 is a wasteful number, since it uses less digits than its factorization.

11222113122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954439 (or 1954436 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 11222113122 its reverse (22131122211), we get a palindrome (33353235333).

The spelling of 11222113122 in words is "eleven billion, two hundred twenty-two million, one hundred thirteen thousand, one hundred twenty-two".