120101201102161 has 2 divisors, whose sum is σ = 120101201102162. Its totient is φ = 120101201102160.

The previous prime is 120101201102143. The next prime is 120101201102221. The reversal of 120101201102161 is 161201102101021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107525099263761 + 12576101838400 = 10369431^2 + 3546280^2 .

It is a cyclic number.

It is not a de Polignac number, because 120101201102161 - 2¹⁹ = 120101200577873 is a prime.

It is not a weakly prime, because it can be changed into another prime (120101201102261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050600551080 + 60050600551081.

It is an arithmetic number, because the mean of its divisors is an integer number (60050600551081).

Almost surely, 2^{120101201102161} is an apocalyptic number.

It is an amenable number.

120101201102161 is a deficient number, since it is larger than the sum of its proper divisors (1).

120101201102161 is an equidigital number, since it uses as much as digits as its factorization.

120101201102161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 120101201102161 its reverse (161201102101021), we get a palindrome (281302303203182).

The spelling of 120101201102161 in words is "one hundred twenty trillion, one hundred one billion, two hundred one million, one hundred two thousand, one hundred sixty-one".