2098121065 has 8 divisors (see below), whose sum is σ = 2627212608. Its totient is φ = 1605518640.

The previous prime is 2098120993. The next prime is 2098121089. The reversal of 2098121065 is 5601218902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2098121065 - 2¹⁵ = 2098088297 is a prime.

It is a super-2 number, since 2×2098121065² = 8804224006793468450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2098121065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9122151 + ... + 9122380.

It is an arithmetic number, because the mean of its divisors is an integer number (328401576).

Almost surely, 2^2098121065 is an apocalyptic number.

It is an amenable number.

2098121065 is a deficient number, since it is larger than the sum of its proper divisors (529091543).

2098121065 is a wasteful number, since it uses less digits than its factorization.

2098121065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18244559.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 2098121065 is about 45805.2515002374. The cubic root of 2098121065 is about 1280.1971264190.

Adding to 2098121065 its reverse (5601218902), we get a palindrome (7699339967).

The spelling of 2098121065 in words is "two billion, ninety-eight million, one hundred twenty-one thousand, sixty-five".