210102221201161 has 2 divisors, whose sum is σ = 210102221201162. Its totient is φ = 210102221201160.

The previous prime is 210102221201141. The next prime is 210102221201207. The reversal of 210102221201161 is 161102122201012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156760290956025 + 53341930245136 = 12520395^2 + 7303556^2 .

It is a cyclic number.

It is not a de Polignac number, because 210102221201161 - 2¹⁵ = 210102221168393 is a prime.

It is not a weakly prime, because it can be changed into another prime (210102221201101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051110600580 + 105051110600581.

It is an arithmetic number, because the mean of its divisors is an integer number (105051110600581).

Almost surely, 2^{210102221201161} is an apocalyptic number.

It is an amenable number.

210102221201161 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102221201161 is an equidigital number, since it uses as much as digits as its factorization.

210102221201161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 210102221201161 its reverse (161102122201012), we get a palindrome (371204343402173).

The spelling of 210102221201161 in words is "two hundred ten trillion, one hundred two billion, two hundred twenty-one million, two hundred one thousand, one hundred sixty-one".