11872022120 has 128 divisors (see below), whose sum is σ = 31411756800. Its totient is φ = 3954272256.

The previous prime is 11872022083. The next prime is 11872022137. The reversal of 11872022120 is 2122027811.

It is a self number, because there is not a number n which added to its sum of digits gives 11872022120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1365146 + ... + 1373814.

It is an arithmetic number, because the mean of its divisors is an integer number (245404350).

Almost surely, 2^11872022120 is an apocalyptic number.

11872022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11872022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15705878400).

11872022120 is an abundant number, since it is smaller than the sum of its proper divisors (19539734680).

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

11872022120 is a wasteful number, since it uses less digits than its factorization.

11872022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 11872022120 its reverse (2122027811), we get a palindrome (13994049931).

The spelling of 11872022120 in words is "eleven billion, eight hundred seventy-two million, twenty-two thousand, one hundred twenty".