11878228220 has 48 divisors (see below), whose sum is σ = 25727442048. Its totient is φ = 4604121600.

The previous prime is 11878228207. The next prime is 11878228223. The reversal of 11878228220 is 2282287811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878228223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32384 + ... + 157496.

It is an arithmetic number, because the mean of its divisors is an integer number (535988376).

Almost surely, 2^11878228220 is an apocalyptic number.

11878228220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11878228220 is an abundant number, since it is smaller than the sum of its proper divisors (13849213828).

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

11878228220 is a wasteful number, since it uses less digits than its factorization.

11878228220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125270 (or 125268 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 41.

The spelling of 11878228220 in words is "eleven billion, eight hundred seventy-eight million, two hundred twenty-eight thousand, two hundred twenty".