210217137210841 has 2 divisors, whose sum is σ = 210217137210842. Its totient is φ = 210217137210840.

The previous prime is 210217137210793. The next prime is 210217137210859. The reversal of 210217137210841 is 148012731712012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207937553601600 + 2279583609241 = 14420040^2 + 1509829^2 .

It is a cyclic number.

It is not a de Polignac number, because 210217137210841 - 2²⁵ = 210217103656409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210217137210794 and 210217137210803.

It is not a weakly prime, because it can be changed into another prime (210217137214841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105108568605420 + 105108568605421.

It is an arithmetic number, because the mean of its divisors is an integer number (105108568605421).

Almost surely, 2^{210217137210841} is an apocalyptic number.

It is an amenable number.

210217137210841 is a deficient number, since it is larger than the sum of its proper divisors (1).

210217137210841 is an equidigital number, since it uses as much as digits as its factorization.

210217137210841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 40.

Adding to 210217137210841 its reverse (148012731712012), we get a palindrome (358229868922853).

The spelling of 210217137210841 in words is "two hundred ten trillion, two hundred seventeen billion, one hundred thirty-seven million, two hundred ten thousand, eight hundred forty-one".