2221099606 has 32 divisors (see below), whose sum is σ = 3901087008. Its totient is φ = 937175040.

The previous prime is 2221099583. The next prime is 2221099631. The reversal of 2221099606 is 6069901222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13375 + ... + 67978.

It is an arithmetic number, because the mean of its divisors is an integer number (121908969).

Almost surely, 2^2221099606 is an apocalyptic number.

2221099606 is a deficient number, since it is larger than the sum of its proper divisors (1679987402).

2221099606 is a wasteful number, since it uses less digits than its factorization.

2221099606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81456.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2221099606 is about 47128.5434317675. The cubic root of 2221099606 is about 1304.7360986798.

The spelling of 2221099606 in words is "two billion, two hundred twenty-one million, ninety-nine thousand, six hundred six".