210320221207 has 2 divisors, whose sum is σ = 210320221208. Its totient is φ = 210320221206.

The previous prime is 210320221201. The next prime is 210320221271. The reversal of 210320221207 is 702122023012.

210320221207 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 210320221207 - 2³¹ = 208172737559 is a prime.

It is a super-2 number, since 2×210320221207² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210320221201) 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, 105160110603 + 105160110604.

It is an arithmetic number, because the mean of its divisors is an integer number (105160110604).

Almost surely, 2^210320221207 is an apocalyptic number.

210320221207 is a deficient number, since it is larger than the sum of its proper divisors (1).

210320221207 is an equidigital number, since it uses as much as digits as its factorization.

210320221207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 210320221207 its reverse (702122023012), we get a palindrome (912442244219).

The spelling of 210320221207 in words is "two hundred ten billion, three hundred twenty million, two hundred twenty-one thousand, two hundred seven".