210010120010221 has 2 divisors, whose sum is σ = 210010120010222. Its totient is φ = 210010120010220.

The previous prime is 210010120009999. The next prime is 210010120010333. The reversal of 210010120010221 is 122010021010012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179439018385225 + 30571101624996 = 13395485^2 + 5529114^2 .

It is a cyclic number.

It is not a de Polignac number, because 210010120010221 - 2²⁹ = 210009583139309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210010120017221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005060005110 + 105005060005111.

It is an arithmetic number, because the mean of its divisors is an integer number (105005060005111).

Almost surely, 2^{210010120010221} is an apocalyptic number.

It is an amenable number.

210010120010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

210010120010221 is an equidigital number, since it uses as much as digits as its factorization.

210010120010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210010120010221 its reverse (122010021010012), we get a palindrome (332020141020233).

The spelling of 210010120010221 in words is "two hundred ten trillion, ten billion, one hundred twenty million, ten thousand, two hundred twenty-one".