210034323221 has 2 divisors, whose sum is σ = 210034323222. Its totient is φ = 210034323220.

The previous prime is 210034323199. The next prime is 210034323229. The reversal of 210034323221 is 122323430012.

210034323221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205765660996 + 4268662225 = 453614^2 + 65335^2 .

It is a cyclic number.

It is not a de Polignac number, because 210034323221 - 2¹⁴ = 210034306837 is a prime.

It is a super-2 number, since 2×210034323221² (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 (210034323229) 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, 105017161610 + 105017161611.

It is an arithmetic number, because the mean of its divisors is an integer number (105017161611).

Almost surely, 2^210034323221 is an apocalyptic number.

It is an amenable number.

210034323221 is a deficient number, since it is larger than the sum of its proper divisors (1).

210034323221 is an equidigital number, since it uses as much as digits as its factorization.

210034323221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 210034323221 its reverse (122323430012), we get a palindrome (332357753233).

The spelling of 210034323221 in words is "two hundred ten billion, thirty-four million, three hundred twenty-three thousand, two hundred twenty-one".