102102201210161 has 2 divisors, whose sum is σ = 102102201210162. Its totient is φ = 102102201210160.

The previous prime is 102102201210143. The next prime is 102102201210197. The reversal of 102102201210161 is 161012102201201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60749070400561 + 41353130809600 = 7794169^2 + 6430640^2 .

It is a cyclic number.

It is not a de Polignac number, because 102102201210161 - 2¹⁰ = 102102201209137 is a prime.

It is not a weakly prime, because it can be changed into another prime (102102201200161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051100605080 + 51051100605081.

It is an arithmetic number, because the mean of its divisors is an integer number (51051100605081).

Almost surely, 2^{102102201210161} is an apocalyptic number.

It is an amenable number.

102102201210161 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102201210161 is an equidigital number, since it uses as much as digits as its factorization.

102102201210161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 102102201210161 its reverse (161012102201201), we get a palindrome (263114303411362).

The spelling of 102102201210161 in words is "one hundred two trillion, one hundred two billion, two hundred one million, two hundred ten thousand, one hundred sixty-one".