2121316099 has 8 divisors (see below), whose sum is σ = 2507960160. Its totient is φ = 1755571776.

The previous prime is 2121316091. The next prime is 2121316103. The reversal of 2121316099 is 9906131212.

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

It is not a de Polignac number, because 2121316099 - 2³ = 2121316091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121316091) by changing a digit.

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, 5224714 + ... + 5225119.

It is an arithmetic number, because the mean of its divisors is an integer number (313495020).

Almost surely, 2^2121316099 is an apocalyptic number.

2121316099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2121316099 is a deficient number, since it is larger than the sum of its proper divisors (386644061).

2121316099 is a wasteful number, since it uses less digits than its factorization.

2121316099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449869.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 2121316099 is about 46057.7474373205. The cubic root of 2121316099 is about 1284.8974364384.

The spelling of 2121316099 in words is "two billion, one hundred twenty-one million, three hundred sixteen thousand, ninety-nine".