2133332221 has 4 divisors (see below), whose sum is σ = 2133935200. Its totient is φ = 2132729244.

The previous prime is 2133332219. The next prime is 2133332237. The reversal of 2133332221 is 1222333312.

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 2133332221 - 2¹ = 2133332219 is a prime.

It is a super-2 number, since 2×2133332221² = 9102212730313585682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2133332192 and 2133332201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133332251) 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 3 ways as a sum of consecutive naturals, for example, 296151 + ... + 303268.

It is an arithmetic number, because the mean of its divisors is an integer number (533483800).

Almost surely, 2^2133332221 is an apocalyptic number.

It is an amenable number.

2133332221 is a deficient number, since it is larger than the sum of its proper divisors (602979).

2133332221 is an equidigital number, since it uses as much as digits as its factorization.

2133332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602978.

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

The square root of 2133332221 is about 46188.0094938069. The cubic root of 2133332221 is about 1287.3189557354.

Adding to 2133332221 its reverse (1222333312), we get a palindrome (3355665533).

The spelling of 2133332221 in words is "two billion, one hundred thirty-three million, three hundred thirty-two thousand, two hundred twenty-one".