2133412221 has 8 divisors (see below), whose sum is σ = 2852701600. Its totient is φ = 1418198832.

The previous prime is 2133412187. The next prime is 2133412223. The reversal of 2133412221 is 1222143312.

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

It is not a de Polignac number, because 2133412221 - 2¹⁰ = 2133411197 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 (2133412223) 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, 1017775 + ... + 1019868.

It is an arithmetic number, because the mean of its divisors is an integer number (356587700).

Almost surely, 2^2133412221 is an apocalyptic number.

It is an amenable number.

2133412221 is a deficient number, since it is larger than the sum of its proper divisors (719289379).

2133412221 is a wasteful number, since it uses less digits than its factorization.

2133412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037995.

The product of its digits is 576, while the sum is 21.

The square root of 2133412221 is about 46188.8755113177. The cubic root of 2133412221 is about 1287.3350470296.

Adding to 2133412221 its reverse (1222143312), we get a palindrome (3355555533).

The spelling of 2133412221 in words is "two billion, one hundred thirty-three million, four hundred twelve thousand, two hundred twenty-one".