210101221207 has 2 divisors, whose sum is σ = 210101221208. Its totient is φ = 210101221206.

The previous prime is 210101221201. The next prime is 210101221243. The reversal of 210101221207 is 702122101012.

210101221207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210101221207 - 2¹⁵ = 210101188439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210101221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050610603 + 105050610604.

It is an arithmetic number, because the mean of its divisors is an integer number (105050610604).

Almost surely, 2^210101221207 is an apocalyptic number.

210101221207 is a deficient number, since it is larger than the sum of its proper divisors (1).

210101221207 is an equidigital number, since it uses as much as digits as its factorization.

210101221207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 210101221207 its reverse (702122101012), we get a palindrome (912223322219).

The spelling of 210101221207 in words is "two hundred ten billion, one hundred one million, two hundred twenty-one thousand, two hundred seven".