2887221116 has 24 divisors (see below), whose sum is σ = 5461555680. Its totient is φ = 1327603392.

The previous prime is 2887221049. The next prime is 2887221149. The reversal of 2887221116 is 6111227882.

It is a self number, because there is not a number n which added to its sum of digits gives 2887221116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89216 + ... + 117191.

It is an arithmetic number, because the mean of its divisors is an integer number (227564820).

Almost surely, 2^2887221116 is an apocalyptic number.

2887221116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2887221116 is a deficient number, since it is larger than the sum of its proper divisors (2574334564).

2887221116 is a wasteful number, since it uses less digits than its factorization.

2887221116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206693 (or 206691 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 2887221116 is about 53732.8681162657. The cubic root of 2887221116 is about 1423.9454376424.

Adding to 2887221116 its reverse (6111227882), we get a palindrome (8998448998).

The spelling of 2887221116 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, one hundred sixteen".