2120222120111 has 2 divisors, whose sum is σ = 2120222120112. Its totient is φ = 2120222120110.

The previous prime is 2120222120099. The next prime is 2120222120129. The reversal of 2120222120111 is 1110212220212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120222120111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120222120111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120222120411) 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, 1060111060055 + 1060111060056.

It is an arithmetic number, because the mean of its divisors is an integer number (1060111060056).

Almost surely, 2^{2120222120111} is an apocalyptic number.

2120222120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120222120111 is an equidigital number, since it uses as much as digits as its factorization.

2120222120111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2120222120111 its reverse (1110212220212), we get a palindrome (3230434340323).

The spelling of 2120222120111 in words is "two trillion, one hundred twenty billion, two hundred twenty-two million, one hundred twenty thousand, one hundred eleven".