2221981674 has 32 divisors (see below), whose sum is σ = 4856220864. Its totient is φ = 672180480.

The previous prime is 2221981661. The next prime is 2221981691. The reversal of 2221981674 is 4761891222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10752 + ... + 67524.

It is an arithmetic number, because the mean of its divisors is an integer number (151756902).

Almost surely, 2^2221981674 is an apocalyptic number.

2221981674 is an abundant number, since it is smaller than the sum of its proper divisors (2634239190).

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

2221981674 is a wasteful number, since it uses less digits than its factorization.

2221981674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57382.

The product of its digits is 96768, while the sum is 42.

The square root of 2221981674 is about 47137.9006108673. The cubic root of 2221981674 is about 1304.9087929680.

The spelling of 2221981674 in words is "two billion, two hundred twenty-one million, nine hundred eighty-one thousand, six hundred seventy-four".