2121202433 has 4 divisors (see below), whose sum is σ = 2424231360. Its totient is φ = 1818173508.

The previous prime is 2121202333. The next prime is 2121202451. The reversal of 2121202433 is 3342021212.

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 2121202433 - 2¹² = 2121198337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121202333) 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 3 ways as a sum of consecutive naturals, for example, 151514453 + ... + 151514466.

It is an arithmetic number, because the mean of its divisors is an integer number (606057840).

Almost surely, 2^2121202433 is an apocalyptic number.

It is an amenable number.

2121202433 is a deficient number, since it is larger than the sum of its proper divisors (303028927).

2121202433 is an equidigital number, since it uses as much as digits as its factorization.

2121202433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303028926.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2121202433 is about 46056.5134698666. The cubic root of 2121202433 is about 1284.8744865724.

Adding to 2121202433 its reverse (3342021212), we get a palindrome (5463223645).

The spelling of 2121202433 in words is "two billion, one hundred twenty-one million, two hundred two thousand, four hundred thirty-three".