2098235221 has 2 divisors, whose sum is σ = 2098235222. Its totient is φ = 2098235220.

The previous prime is 2098235219. The next prime is 2098235263. The reversal of 2098235221 is 1225328902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1232992996 + 865242225 = 35114^2 + 29415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2098235221 - 2¹ = 2098235219 is a prime.

Together with 2098235219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2098235621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049117610 + 1049117611.

It is an arithmetic number, because the mean of its divisors is an integer number (1049117611).

Almost surely, 2^2098235221 is an apocalyptic number.

It is an amenable number.

2098235221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2098235221 is an equidigital number, since it uses as much as digits as its factorization.

2098235221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2098235221 is about 45806.4975849497. The cubic root of 2098235221 is about 1280.2203439436.

The spelling of 2098235221 in words is "two billion, ninety-eight million, two hundred thirty-five thousand, two hundred twenty-one".