2121334433 has 8 divisors (see below), whose sum is σ = 2201235456. Its totient is φ = 2042150400.

The previous prime is 2121334417. The next prime is 2121334447. The reversal of 2121334433 is 3344331212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121334433 - 2⁴ = 2121334417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121334403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173216 + ... + 185057.

It is an arithmetic number, because the mean of its divisors is an integer number (275154432).

Almost surely, 2^2121334433 is an apocalyptic number.

It is an amenable number.

2121334433 is a deficient number, since it is larger than the sum of its proper divisors (79901023).

2121334433 is a wasteful number, since it uses less digits than its factorization.

2121334433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358495.

The product of its digits is 5184, while the sum is 26.

The square root of 2121334433 is about 46057.9464696376. The cubic root of 2121334433 is about 1284.9011381093.

Adding to 2121334433 its reverse (3344331212), we get a palindrome (5465665645).

The spelling of 2121334433 in words is "two billion, one hundred twenty-one million, three hundred thirty-four thousand, four hundred thirty-three".