2099421259 has 12 divisors (see below), whose sum is σ = 2286510336. Its totient is φ = 1926698592.

The previous prime is 2099421253. The next prime is 2099421263. The reversal of 2099421259 is 9521249902.

It is not a de Polignac number, because 2099421259 - 2¹¹ = 2099419211 is a prime.

It is a super-2 number, since 2×2099421259² = 8815139245482290162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2099421253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6667 + ... + 65140.

It is an arithmetic number, because the mean of its divisors is an integer number (190542528).

Almost surely, 2^2099421259 is an apocalyptic number.

2099421259 is a deficient number, since it is larger than the sum of its proper divisors (187089077).

2099421259 is a wasteful number, since it uses less digits than its factorization.

2099421259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72006 (or 71993 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 2099421259 is about 45819.4419324374. The cubic root of 2099421259 is about 1280.4615155019.

The spelling of 2099421259 in words is "two billion, ninety-nine million, four hundred twenty-one thousand, two hundred fifty-nine".