2121333 has 4 divisors (see below), whose sum is σ = 2828448. Its totient is φ = 1414220.

The previous prime is 2121323. The next prime is 2121337. The reversal of 2121333 is 3331212.

2121333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2121333 - 2¹⁰ = 2120309 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353553 + ... + 353558.

It is an arithmetic number, because the mean of its divisors is an integer number (707112).

2^2121333 is an apocalyptic number.

It is an amenable number.

2121333 is a deficient number, since it is larger than the sum of its proper divisors (707115).

2121333 is an equidigital number, since it uses as much as digits as its factorization.

2121333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707114.

The product of its digits is 108, while the sum is 15.

The square root of 2121333 is about 1456.4796600022. The cubic root of 2121333 is about 128.4900848785.

Adding to 2121333 its reverse (3331212), we get a palindrome (5452545).

The spelling of 2121333 in words is "two million, one hundred twenty-one thousand, three hundred thirty-three".