11988084228 has 48 divisors (see below), whose sum is σ = 28269373440. Its totient is φ = 3953746944.

The previous prime is 11988084193. The next prime is 11988084253. The reversal of 11988084228 is 82248088911.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557908 + ... + 578996.

It is an arithmetic number, because the mean of its divisors is an integer number (588945280).

Almost surely, 2^11988084228 is an apocalyptic number.

It is an amenable number.

11988084228 is an abundant number, since it is smaller than the sum of its proper divisors (16281289212).

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

11988084228 is a wasteful number, since it uses less digits than its factorization.

11988084228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21596 (or 21594 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 51.

The spelling of 11988084228 in words is "eleven billion, nine hundred eighty-eight million, eighty-four thousand, two hundred twenty-eight".