210002011200221 has 2 divisors, whose sum is σ = 210002011200222. Its totient is φ = 210002011200220.

The previous prime is 210002011200209. The next prime is 210002011200253. The reversal of 210002011200221 is 122002110200012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153266257005625 + 56735754194596 = 12380075^2 + 7532314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210002011200221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210002011200196 and 210002011200205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210002011200281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105001005600110 + 105001005600111.

It is an arithmetic number, because the mean of its divisors is an integer number (105001005600111).

Almost surely, 2^{210002011200221} is an apocalyptic number.

It is an amenable number.

210002011200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

210002011200221 is an equidigital number, since it uses as much as digits as its factorization.

210002011200221 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 210002011200221 its reverse (122002110200012), we get a palindrome (332004121400233).

The spelling of 210002011200221 in words is "two hundred ten trillion, two billion, eleven million, two hundred thousand, two hundred twenty-one".