2200999991 has 2 divisors, whose sum is σ = 2200999992. Its totient is φ = 2200999990.

The previous prime is 2200999963. The next prime is 2201000027. The reversal of 2200999991 is 1999990022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2200999991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200999901) 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, 1100499995 + 1100499996.

It is an arithmetic number, because the mean of its divisors is an integer number (1100499996).

Almost surely, 2^2200999991 is an apocalyptic number.

2200999991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200999991 is an equidigital number, since it uses as much as digits as its factorization.

2200999991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 2200999991 is about 46914.8163270411. The cubic root of 2200999991 is about 1300.7884745386.

The spelling of 2200999991 in words is "two billion, two hundred million, nine hundred ninety-nine thousand, nine hundred ninety-one".