211221032203 has 2 divisors, whose sum is σ = 211221032204. Its totient is φ = 211221032202.

The previous prime is 211221032177. The next prime is 211221032207. The reversal of 211221032203 is 302230122112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211221032203 - 2⁵ = 211221032171 is a prime.

It is a super-3 number, since 3×211221032203³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (211221032207) 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 as a sum of consecutive naturals, namely, 105610516101 + 105610516102.

It is an arithmetic number, because the mean of its divisors is an integer number (105610516102).

Almost surely, 2^211221032203 is an apocalyptic number.

211221032203 is a deficient number, since it is larger than the sum of its proper divisors (1).

211221032203 is an equidigital number, since it uses as much as digits as its factorization.

211221032203 is an odious number, because the sum of its binary digits is odd.

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

Adding to 211221032203 its reverse (302230122112), we get a palindrome (513451154315).

The spelling of 211221032203 in words is "two hundred eleven billion, two hundred twenty-one million, thirty-two thousand, two hundred three".