1122222611 has 2 divisors, whose sum is σ = 1122222612. Its totient is φ = 1122222610.

The previous prime is 1122222587. The next prime is 1122222623. The reversal of 1122222611 is 1162222211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122222611 - 2¹⁸ = 1121960467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1122222671) 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, 561111305 + 561111306.

It is an arithmetic number, because the mean of its divisors is an integer number (561111306).

Almost surely, 2^1122222611 is an apocalyptic number.

1122222611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122222611 is an equidigital number, since it uses as much as digits as its factorization.

1122222611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 20.

The square root of 1122222611 is about 33499.5912064610. The cubic root of 1122222611 is about 1039.1853244602.

Adding to 1122222611 its reverse (1162222211), we get a palindrome (2284444822).

It can be divided in two parts, 11222 and 22611, that added together give a palindrome (33833).

The spelling of 1122222611 in words is "one billion, one hundred twenty-two million, two hundred twenty-two thousand, six hundred eleven".