2133204121 has 8 divisors (see below), whose sum is σ = 2151400680. Its totient is φ = 2115045888.

The previous prime is 2133204079. The next prime is 2133204137. The reversal of 2133204121 is 1214023312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 481188096 + 1652016025 = 21936^2 + 40645^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2133204121 - 2¹¹ = 2133202073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133204721) 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 7 ways as a sum of consecutive naturals, for example, 108325 + ... + 126493.

It is an arithmetic number, because the mean of its divisors is an integer number (268925085).

Almost surely, 2^2133204121 is an apocalyptic number.

It is an amenable number.

2133204121 is a deficient number, since it is larger than the sum of its proper divisors (18196559).

2133204121 is a wasteful number, since it uses less digits than its factorization.

2133204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19163.

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

The square root of 2133204121 is about 46186.6227494499. The cubic root of 2133204121 is about 1287.2931887127.

Adding to 2133204121 its reverse (1214023312), we get a palindrome (3347227433).

The spelling of 2133204121 in words is "two billion, one hundred thirty-three million, two hundred four thousand, one hundred twenty-one".