2133311221 has 16 divisors (see below), whose sum is σ = 2281305600. Its totient is φ = 1991404800.

The previous prime is 2133311161. The next prime is 2133311231. The reversal of 2133311221 is 1221133312.

It is a cyclic number.

It is not a de Polignac number, because 2133311221 - 2²⁹ = 1596440309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133311231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103690 + ... + 122548.

It is an arithmetic number, because the mean of its divisors is an integer number (142581600).

Almost surely, 2^2133311221 is an apocalyptic number.

It is an amenable number.

2133311221 is a deficient number, since it is larger than the sum of its proper divisors (147994379).

2133311221 is a wasteful number, since it uses less digits than its factorization.

2133311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19020.

The product of its digits is 216, while the sum is 19.

The square root of 2133311221 is about 46187.7821615197. The cubic root of 2133311221 is about 1287.3147317040.

Adding to 2133311221 its reverse (1221133312), we get a palindrome (3354444533).

The spelling of 2133311221 in words is "two billion, one hundred thirty-three million, three hundred eleven thousand, two hundred twenty-one".