120112212121117 has 2 divisors, whose sum is σ = 120112212121118. Its totient is φ = 120112212121116.

The previous prime is 120112212121073. The next prime is 120112212121229. The reversal of 120112212121117 is 711121212211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78630445799161 + 41481766321956 = 8867381^2 + 6440634^2 .

It is a cyclic number.

It is not a de Polignac number, because 120112212121117 - 2³¹ = 120110064637469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120112212121091 and 120112212121100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120112212121417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60056106060558 + 60056106060559.

It is an arithmetic number, because the mean of its divisors is an integer number (60056106060559).

Almost surely, 2^{120112212121117} is an apocalyptic number.

It is an amenable number.

120112212121117 is a deficient number, since it is larger than the sum of its proper divisors (1).

120112212121117 is an equidigital number, since it uses as much as digits as its factorization.

120112212121117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 25.

Adding to 120112212121117 its reverse (711121212211021), we get a palindrome (831233424332138).

The spelling of 120112212121117 in words is "one hundred twenty trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty-one thousand, one hundred seventeen".