120112101101021 has 2 divisors, whose sum is σ = 120112101101022. Its totient is φ = 120112101101020.

The previous prime is 120112101101017. The next prime is 120112101101143. The reversal of 120112101101021 is 120101101211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104450730172996 + 15661370928025 = 10220114^2 + 3957445^2 .

It is a cyclic number.

It is not a de Polignac number, because 120112101101021 - 2² = 120112101101017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120112101100987 and 120112101101005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120112101101621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60056050550510 + 60056050550511.

It is an arithmetic number, because the mean of its divisors is an integer number (60056050550511).

Almost surely, 2^{120112101101021} is an apocalyptic number.

It is an amenable number.

120112101101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120112101101021 is an equidigital number, since it uses as much as digits as its factorization.

120112101101021 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 14.

Adding to 120112101101021 its reverse (120101101211021), we get a palindrome (240213202312042).

The spelling of 120112101101021 in words is "one hundred twenty trillion, one hundred twelve billion, one hundred one million, one hundred one thousand, twenty-one".