2133421201 has 4 divisors (see below), whose sum is σ = 2155415332. Its totient is φ = 2111427072.

The previous prime is 2133421151. The next prime is 2133421207. The reversal of 2133421201 is 1021243312.

It is a happy number.

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 1544097025 + 589324176 = 39295^2 + 24276^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133421201 - 2¹¹ = 2133419153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133421207) 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, 10996920 + ... + 10997113.

It is an arithmetic number, because the mean of its divisors is an integer number (538853833).

Almost surely, 2^2133421201 is an apocalyptic number.

It is an amenable number.

2133421201 is a deficient number, since it is larger than the sum of its proper divisors (21994131).

2133421201 is an equidigital number, since it uses as much as digits as its factorization.

2133421201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21994130.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2133421201 is about 46188.9727207696. The cubic root of 2133421201 is about 1287.3368532522.

Adding to 2133421201 its reverse (1021243312), we get a palindrome (3154664513).

The spelling of 2133421201 in words is "two billion, one hundred thirty-three million, four hundred twenty-one thousand, two hundred one".