11169135228 has 24 divisors (see below), whose sum is σ = 26329991632. Its totient is φ = 3684662784.

The previous prime is 11169135227. The next prime is 11169135301. The reversal of 11169135228 is 82253196111.

It is a super-2 number, since 2×11169135228² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11169135223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4796575 + ... + 4798902.

Almost surely, 2^11169135228 is an apocalyptic number.

It is an amenable number.

11169135228 is an abundant number, since it is smaller than the sum of its proper divisors (15160856404).

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

11169135228 is a wasteful number, since it uses less digits than its factorization.

11169135228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595581 (or 9595579 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The spelling of 11169135228 in words is "eleven billion, one hundred sixty-nine million, one hundred thirty-five thousand, two hundred twenty-eight".