2121412043111 has 2 divisors, whose sum is σ = 2121412043112. Its totient is φ = 2121412043110.

The previous prime is 2121412043041. The next prime is 2121412043141. The reversal of 2121412043111 is 1113402141212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121412043111 - 2¹⁸ = 2121411780967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121412043141) 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, 1060706021555 + 1060706021556.

It is an arithmetic number, because the mean of its divisors is an integer number (1060706021556).

Almost surely, 2^{2121412043111} is an apocalyptic number.

2121412043111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121412043111 is an equidigital number, since it uses as much as digits as its factorization.

2121412043111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 2121412043111 its reverse (1113402141212), we get a palindrome (3234814184323).

The spelling of 2121412043111 in words is "two trillion, one hundred twenty-one billion, four hundred twelve million, forty-three thousand, one hundred eleven".