2887221218 has 24 divisors (see below), whose sum is σ = 5113110672. Its totient is φ = 1218909384.

The previous prime is 2887221203. The next prime is 2887221229. The reversal of 2887221218 is 8121227882.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213296 + ... + 226427.

It is an arithmetic number, because the mean of its divisors is an integer number (213046278).

Almost surely, 2^2887221218 is an apocalyptic number.

2887221218 is a deficient number, since it is larger than the sum of its proper divisors (2225889454).

2887221218 is a wasteful number, since it uses less digits than its factorization.

2887221218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439806 (or 439799 counting only the distinct ones).

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

The square root of 2887221218 is about 53732.8690654054. The cubic root of 2887221218 is about 1423.9454544108.

The spelling of 2887221218 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, two hundred eighteen".