100120012211161 has 2 divisors, whose sum is σ = 100120012211162. Its totient is φ = 100120012211160.

The previous prime is 100120012211147. The next prime is 100120012211183. The reversal of 100120012211161 is 161112210021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100039103822025 + 80908389136 = 10001955^2 + 284444^2 .

It is a cyclic number.

It is not a de Polignac number, because 100120012211161 - 2⁷ = 100120012211033 is a prime.

It is not a weakly prime, because it can be changed into another prime (100120012211101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060006105580 + 50060006105581.

It is an arithmetic number, because the mean of its divisors is an integer number (50060006105581).

Almost surely, 2^{100120012211161} is an apocalyptic number.

It is an amenable number.

100120012211161 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120012211161 is an equidigital number, since it uses as much as digits as its factorization.

100120012211161 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 19.

Adding to 100120012211161 its reverse (161112210021001), we get a palindrome (261232222232162).

The spelling of 100120012211161 in words is "one hundred trillion, one hundred twenty billion, twelve million, two hundred eleven thousand, one hundred sixty-one".