211300133221 has 2 divisors, whose sum is σ = 211300133222. Its totient is φ = 211300133220.

The previous prime is 211300133131. The next prime is 211300133329. The reversal of 211300133221 is 122331003112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208798733025 + 2501400196 = 456945^2 + 50014^2 .

It is a cyclic number.

It is not a de Polignac number, because 211300133221 - 2⁹ = 211300132709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211300113221) 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, 105650066610 + 105650066611.

It is an arithmetic number, because the mean of its divisors is an integer number (105650066611).

Almost surely, 2^211300133221 is an apocalyptic number.

It is an amenable number.

211300133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

211300133221 is an equidigital number, since it uses as much as digits as its factorization.

211300133221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 211300133221 its reverse (122331003112), we get a palindrome (333631136333).

The spelling of 211300133221 in words is "two hundred eleven billion, three hundred million, one hundred thirty-three thousand, two hundred twenty-one".