2218199872 has 56 divisors (see below), whose sum is σ = 5115885120. Its totient is φ = 934533120.

The previous prime is 2218199807. The next prime is 2218199881. The reversal of 2218199872 is 2789918122.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15529 + ... + 68392.

Almost surely, 2^2218199872 is an apocalyptic number.

It is an amenable number.

2218199872 is an abundant number, since it is smaller than the sum of its proper divisors (2897685248).

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

2218199872 is an equidigital number, since it uses as much as digits as its factorization.

2218199872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83999 (or 83989 counting only the distinct ones).

The product of its digits is 290304, while the sum is 49.

The square root of 2218199872 is about 47097.7692890014. The cubic root of 2218199872 is about 1304.1680564263.

The spelling of 2218199872 in words is "two billion, two hundred eighteen million, one hundred ninety-nine thousand, eight hundred seventy-two".