1120120212121 has 2 divisors, whose sum is σ = 1120120212122. Its totient is φ = 1120120212120.

The previous prime is 1120120212109. The next prime is 1120120212157. The reversal of 1120120212121 is 1212120210211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 695537652121 + 424582560000 = 833989^2 + 651600^2 .

It is an emirp because it is prime and its reverse (1212120210211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120120212121 - 2⁷ = 1120120211993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120120212095 and 1120120212104.

It is not a weakly prime, because it can be changed into another prime (1120120812121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560060106060 + 560060106061.

It is an arithmetic number, because the mean of its divisors is an integer number (560060106061).

Almost surely, 2^{1120120212121} is an apocalyptic number.

It is an amenable number.

1120120212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120120212121 is an equidigital number, since it uses as much as digits as its factorization.

1120120212121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1120120212121 its reverse (1212120210211), we get a palindrome (2332240422332).

The spelling of 1120120212121 in words is "one trillion, one hundred twenty billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-one".