210010010202221 has 2 divisors, whose sum is σ = 210010010202222. Its totient is φ = 210010010202220.

The previous prime is 210010010202173. The next prime is 210010010202269. The reversal of 210010010202221 is 122202010010012.

It is a balanced prime because it is at equal distance from previous prime (210010010202173) and next prime (210010010202269).

It can be written as a sum of positive squares in only one way, i.e., 123238195612900 + 86771814589321 = 11101270^2 + 9315139^2 .

It is a cyclic number.

It is not a de Polignac number, because 210010010202221 - 2¹⁸ = 210010009940077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210010010202196 and 210010010202205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210010010208221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005005101110 + 105005005101111.

It is an arithmetic number, because the mean of its divisors is an integer number (105005005101111).

Almost surely, 2^{210010010202221} is an apocalyptic number.

It is an amenable number.

210010010202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

210010010202221 is an equidigital number, since it uses as much as digits as its factorization.

210010010202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210010010202221 its reverse (122202010010012), we get a palindrome (332212020212233).

The spelling of 210010010202221 in words is "two hundred ten trillion, ten billion, ten million, two hundred two thousand, two hundred twenty-one".