2121322333 has 4 divisors (see below), whose sum is σ = 2284500988. Its totient is φ = 1958143680.

The previous prime is 2121322331. The next prime is 2121322349. The reversal of 2121322333 is 3332231212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1209161529 + 912160804 = 34773^2 + 30202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121322333 - 2¹ = 2121322331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121322331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81589308 + ... + 81589333.

It is an arithmetic number, because the mean of its divisors is an integer number (571125247).

Almost surely, 2^2121322333 is an apocalyptic number.

It is an amenable number.

2121322333 is a deficient number, since it is larger than the sum of its proper divisors (163178655).

2121322333 is a wasteful number, since it uses less digits than its factorization.

2121322333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163178654.

The product of its digits is 1296, while the sum is 22.

The square root of 2121322333 is about 46057.8151131814. The cubic root of 2121322333 is about 1284.8986950978.

Adding to 2121322333 its reverse (3332231212), we get a palindrome (5453553545).

The spelling of 2121322333 in words is "two billion, one hundred twenty-one million, three hundred twenty-two thousand, three hundred thirty-three".