2191822882 has 16 divisors (see below), whose sum is σ = 3329232192. Its totient is φ = 1082145520.

The previous prime is 2191822861. The next prime is 2191822889. The reversal of 2191822882 is 2882281912.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2191822889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50088 + ... + 83020.

It is an arithmetic number, because the mean of its divisors is an integer number (208077012).

Almost surely, 2^2191822882 is an apocalyptic number.

2191822882 is a deficient number, since it is larger than the sum of its proper divisors (1137409310).

2191822882 is a wasteful number, since it uses less digits than its factorization.

2191822882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33353.

The product of its digits is 73728, while the sum is 43.

The square root of 2191822882 is about 46816.9080781719. The cubic root of 2191822882 is about 1298.9780690592.

The spelling of 2191822882 in words is "two billion, one hundred ninety-one million, eight hundred twenty-two thousand, eight hundred eighty-two".