2122201111 has 2 divisors, whose sum is σ = 2122201112. Its totient is φ = 2122201110.

The previous prime is 2122201087. The next prime is 2122201117. The reversal of 2122201111 is 1111022212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122201111 - 2⁵ = 2122201079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122201091 and 2122201100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122201117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061100555 + 1061100556.

It is an arithmetic number, because the mean of its divisors is an integer number (1061100556).

Almost surely, 2^2122201111 is an apocalyptic number.

2122201111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122201111 is an equidigital number, since it uses as much as digits as its factorization.

2122201111 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.

The square root of 2122201111 is about 46067.3540698834. The cubic root of 2122201111 is about 1285.0760977811.

Adding to 2122201111 its reverse (1111022212), we get a palindrome (3233223323).

The spelling of 2122201111 in words is "two billion, one hundred twenty-two million, two hundred one thousand, one hundred eleven".