120112121 has 2 divisors, whose sum is σ = 120112122. Its totient is φ = 120112120.

The previous prime is 120112087. The next prime is 120112159. The reversal of 120112121 is 121211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 50623225 = 8336^2 + 7115^2 .

It is an emirp because it is prime and its reverse (121211021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120112121 is a prime.

It is a super-2 number, since 2×120112121² = 28853843222237282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120112621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60056060 + 60056061.

It is an arithmetic number, because the mean of its divisors is an integer number (60056061).

Almost surely, 2^120112121 is an apocalyptic number.

It is an amenable number.

120112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120112121 is an equidigital number, since it uses as much as digits as its factorization.

120112121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 120112121 is about 10959.5675553372. The cubic root of 120112121 is about 493.3959860267.

Adding to 120112121 its reverse (121211021), we get a palindrome (241323142).

The spelling of 120112121 in words is "one hundred twenty million, one hundred twelve thousand, one hundred twenty-one".