210433013221 has 2 divisors, whose sum is σ = 210433013222. Its totient is φ = 210433013220.

The previous prime is 210433013159. The next prime is 210433013233. The reversal of 210433013221 is 122310334012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148698156996 + 61734856225 = 385614^2 + 248465^2 .

It is a cyclic number.

It is not a de Polignac number, because 210433013221 - 2¹⁹ = 210432488933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210433013192 and 210433013201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210433013261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105216506610 + 105216506611.

It is an arithmetic number, because the mean of its divisors is an integer number (105216506611).

Almost surely, 2^210433013221 is an apocalyptic number.

It is an amenable number.

210433013221 is a deficient number, since it is larger than the sum of its proper divisors (1).

210433013221 is an equidigital number, since it uses as much as digits as its factorization.

210433013221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 210433013221 its reverse (122310334012), we get a palindrome (332743347233).

The spelling of 210433013221 in words is "two hundred ten billion, four hundred thirty-three million, thirteen thousand, two hundred twenty-one".