2120203223111 has 2 divisors, whose sum is σ = 2120203223112. Its totient is φ = 2120203223110.

The previous prime is 2120203223077. The next prime is 2120203223167. The reversal of 2120203223111 is 1113223020212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120203223111 - 2³⁸ = 1845325316167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120203213111) 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, 1060101611555 + 1060101611556.

It is an arithmetic number, because the mean of its divisors is an integer number (1060101611556).

Almost surely, 2^{2120203223111} is an apocalyptic number.

2120203223111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120203223111 is an equidigital number, since it uses as much as digits as its factorization.

2120203223111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2120203223111 its reverse (1113223020212), we get a palindrome (3233426243323).

The spelling of 2120203223111 in words is "two trillion, one hundred twenty billion, two hundred three million, two hundred twenty-three thousand, one hundred eleven".