2221001099 has 2 divisors, whose sum is σ = 2221001100. Its totient is φ = 2221001098.

The previous prime is 2221001071. The next prime is 2221001131. The reversal of 2221001099 is 9901001222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221001099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221001899) by changing a digit.

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 as a sum of consecutive naturals, namely, 1110500549 + 1110500550.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500550).

Almost surely, 2^2221001099 is an apocalyptic number.

2221001099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221001099 is an equidigital number, since it uses as much as digits as its factorization.

2221001099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 2221001099 is about 47127.4983316535. The cubic root of 2221001099 is about 1304.7168098046.

The spelling of 2221001099 in words is "two billion, two hundred twenty-one million, one thousand, ninety-nine".