210102110211281 has 2 divisors, whose sum is σ = 210102110211282. Its totient is φ = 210102110211280.

The previous prime is 210102110211199. The next prime is 210102110211317. The reversal of 210102110211281 is 182112011201012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135911295610000 + 74190814601281 = 11658100^2 + 8613409^2 .

It is a cyclic number.

It is not a de Polignac number, because 210102110211281 - 2¹⁴ = 210102110194897 is a prime.

It is a super-2 number, since 2×210102110211281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210102110211481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051055105640 + 105051055105641.

It is an arithmetic number, because the mean of its divisors is an integer number (105051055105641).

Almost surely, 2^{210102110211281} is an apocalyptic number.

It is an amenable number.

210102110211281 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102110211281 is an equidigital number, since it uses as much as digits as its factorization.

210102110211281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 210102110211281 its reverse (182112011201012), we get a palindrome (392214121412293).

The spelling of 210102110211281 in words is "two hundred ten trillion, one hundred two billion, one hundred ten million, two hundred eleven thousand, two hundred eighty-one".