22012120111 has 2 divisors, whose sum is σ = 22012120112. Its totient is φ = 22012120110.

The previous prime is 22012120073. The next prime is 22012120133. The reversal of 22012120111 is 11102121022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22012120111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22012120091 and 22012120100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012120811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006060055 + 11006060056.

It is an arithmetic number, because the mean of its divisors is an integer number (11006060056).

Almost surely, 2^22012120111 is an apocalyptic number.

22012120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012120111 is an equidigital number, since it uses as much as digits as its factorization.

22012120111 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 22012120111 its reverse (11102121022), we get a palindrome (33114241133).

The spelling of 22012120111 in words is "twenty-two billion, twelve million, one hundred twenty thousand, one hundred eleven".