210021201110213 has 2 divisors, whose sum is σ = 210021201110214. Its totient is φ = 210021201110212.

The previous prime is 210021201110197. The next prime is 210021201110233. The reversal of 210021201110213 is 312011102120012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206530757107684 + 3490444002529 = 14371178^2 + 1868273^2 .

It is a cyclic number.

It is not a de Polignac number, because 210021201110213 - 2⁴ = 210021201110197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210021201110191 and 210021201110200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210021201110233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010600555106 + 105010600555107.

It is an arithmetic number, because the mean of its divisors is an integer number (105010600555107).

Almost surely, 2^{210021201110213} is an apocalyptic number.

It is an amenable number.

210021201110213 is a deficient number, since it is larger than the sum of its proper divisors (1).

210021201110213 is an equidigital number, since it uses as much as digits as its factorization.

210021201110213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 210021201110213 its reverse (312011102120012), we get a palindrome (522032303230225).

The spelling of 210021201110213 in words is "two hundred ten trillion, twenty-one billion, two hundred one million, one hundred ten thousand, two hundred thirteen".