2133312021 has 12 divisors (see below), whose sum is σ = 3087732960. Its totient is φ = 1419308520.

The previous prime is 2133312019. The next prime is 2133312037. The reversal of 2133312021 is 1202133312.

It is not a de Polignac number, because 2133312021 - 2¹ = 2133312019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2133311985 and 2133312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133312011) 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 11 ways as a sum of consecutive naturals, for example, 236961 + ... + 245798.

It is an arithmetic number, because the mean of its divisors is an integer number (257311080).

Almost surely, 2^2133312021 is an apocalyptic number.

It is an amenable number.

2133312021 is a deficient number, since it is larger than the sum of its proper divisors (954420939).

2133312021 is a wasteful number, since it uses less digits than its factorization.

2133312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483256 (or 483253 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2133312021 is about 46187.7908218178. The cubic root of 2133312021 is about 1287.3148926200.

Adding to 2133312021 its reverse (1202133312), we get a palindrome (3335445333).

The spelling of 2133312021 in words is "two billion, one hundred thirty-three million, three hundred twelve thousand, twenty-one".