11155045122 has 288 divisors, whose sum is σ = 29216835648. Its totient is φ = 3052982016.

The previous prime is 11155045093. The next prime is 11155045133. The reversal of 11155045122 is 22154055111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 134398093 + ... + 134398175.

It is an arithmetic number, because the mean of its divisors is an integer number (101447346).

Almost surely, 2^11155045122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11155045122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14608417824).

11155045122 is an abundant number, since it is smaller than the sum of its proper divisors (18061790526).

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

11155045122 is a wasteful number, since it uses less digits than its factorization.

11155045122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 11155045122 in words is "eleven billion, one hundred fifty-five million, forty-five thousand, one hundred twenty-two".