2099037221 has 2 divisors, whose sum is σ = 2099037222. Its totient is φ = 2099037220.

The previous prime is 2099037203. The next prime is 2099037251. The reversal of 2099037221 is 1227309902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1874457025 + 224580196 = 43295^2 + 14986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2099037221 - 2¹⁴ = 2099020837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2099037251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049518610 + 1049518611.

It is an arithmetic number, because the mean of its divisors is an integer number (1049518611).

Almost surely, 2^2099037221 is an apocalyptic number.

It is an amenable number.

2099037221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2099037221 is an equidigital number, since it uses as much as digits as its factorization.

2099037221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 2099037221 is about 45815.2509651535. The cubic root of 2099037221 is about 1280.3834343220.

The spelling of 2099037221 in words is "two billion, ninety-nine million, thirty-seven thousand, two hundred twenty-one".