102122010161 has 2 divisors, whose sum is σ = 102122010162. Its totient is φ = 102122010160.

The previous prime is 102122010157. The next prime is 102122010187. The reversal of 102122010161 is 161010221201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58668106225 + 43453903936 = 242215^2 + 208456^2 .

It is a cyclic number.

It is not a de Polignac number, because 102122010161 - 2² = 102122010157 is a prime.

It is not a weakly prime, because it can be changed into another prime (102122010101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061005080 + 51061005081.

It is an arithmetic number, because the mean of its divisors is an integer number (51061005081).

Almost surely, 2^102122010161 is an apocalyptic number.

It is an amenable number.

102122010161 is a deficient number, since it is larger than the sum of its proper divisors (1).

102122010161 is an equidigital number, since it uses as much as digits as its factorization.

102122010161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 102122010161 its reverse (161010221201), we get a palindrome (263132231362).

The spelling of 102122010161 in words is "one hundred two billion, one hundred twenty-two million, ten thousand, one hundred sixty-one".