2121323199 has 8 divisors (see below), whose sum is σ = 2828670000. Its totient is φ = 1414095936.

The previous prime is 2121323177. The next prime is 2121323201. The reversal of 2121323199 is 9913231212.

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

It is not a de Polignac number, because 2121323199 - 2¹¹ = 2121321151 is a prime.

It is a super-2 number, since 2×2121323199² = 9000024229231187202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121321199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26989 + ... + 70505.

It is an arithmetic number, because the mean of its divisors is an integer number (353583750).

Almost surely, 2^2121323199 is an apocalyptic number.

2121323199 is a deficient number, since it is larger than the sum of its proper divisors (707346801).

2121323199 is a wasteful number, since it uses less digits than its factorization.

2121323199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59769.

The product of its digits is 5832, while the sum is 33.

The square root of 2121323199 is about 46057.8245144080. The cubic root of 2121323199 is about 1284.8988699450.

The spelling of 2121323199 in words is "two billion, one hundred twenty-one million, three hundred twenty-three thousand, one hundred ninety-nine".