2121204203 has 2 divisors, whose sum is σ = 2121204204. Its totient is φ = 2121204202.

The previous prime is 2121204199. The next prime is 2121204227. The reversal of 2121204203 is 3024021212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121204203 - 2² = 2121204199 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121204103) 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 as a sum of consecutive naturals, namely, 1060602101 + 1060602102.

It is an arithmetic number, because the mean of its divisors is an integer number (1060602102).

Almost surely, 2^2121204203 is an apocalyptic number.

2121204203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121204203 is an equidigital number, since it uses as much as digits as its factorization.

2121204203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2121204203 is about 46056.5326853857. The cubic root of 2121204203 is about 1284.8748439526.

Adding to 2121204203 its reverse (3024021212), we get a palindrome (5145225415).

The spelling of 2121204203 in words is "two billion, one hundred twenty-one million, two hundred four thousand, two hundred three".