161012322206101 has 2 divisors, whose sum is σ = 161012322206102. Its totient is φ = 161012322206100.

The previous prime is 161012322206069. The next prime is 161012322206137. The reversal of 161012322206101 is 101602223210161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142845547143601 + 18166775062500 = 11951801^2 + 4262250^2 .

It is a cyclic number.

It is not a de Polignac number, because 161012322206101 - 2⁵ = 161012322206069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161012322206101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161012322200101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80506161103050 + 80506161103051.

It is an arithmetic number, because the mean of its divisors is an integer number (80506161103051).

Almost surely, 2^{161012322206101} is an apocalyptic number.

It is an amenable number.

161012322206101 is a deficient number, since it is larger than the sum of its proper divisors (1).

161012322206101 is an equidigital number, since it uses as much as digits as its factorization.

161012322206101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 161012322206101 its reverse (101602223210161), we get a palindrome (262614545416262).

The spelling of 161012322206101 in words is "one hundred sixty-one trillion, twelve billion, three hundred twenty-two million, two hundred six thousand, one hundred one".