120020121211 has 2 divisors, whose sum is σ = 120020121212. Its totient is φ = 120020121210.

The previous prime is 120020121157. The next prime is 120020121229. The reversal of 120020121211 is 112121020021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120020121211 - 2²¹ = 120018024059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120020121191 and 120020121200.

It is not a weakly prime, because it can be changed into another prime (120020121251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010060605 + 60010060606.

It is an arithmetic number, because the mean of its divisors is an integer number (60010060606).

Almost surely, 2^120020121211 is an apocalyptic number.

120020121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020121211 is an equidigital number, since it uses as much as digits as its factorization.

120020121211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120020121211 its reverse (112121020021), we get a palindrome (232141141232).

The spelling of 120020121211 in words is "one hundred twenty billion, twenty million, one hundred twenty-one thousand, two hundred eleven".