1122112289 has 2 divisors, whose sum is σ = 1122112290. Its totient is φ = 1122112288.

The previous prime is 1122112207. The next prime is 1122112349. The reversal of 1122112289 is 9822112211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990046225 + 132066064 = 31465^2 + 11492^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122112289 - 2²⁴ = 1105335073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122112889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561056144 + 561056145.

It is an arithmetic number, because the mean of its divisors is an integer number (561056145).

Almost surely, 2^1122112289 is an apocalyptic number.

It is an amenable number.

1122112289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122112289 is an equidigital number, since it uses as much as digits as its factorization.

1122112289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 29.

The square root of 1122112289 is about 33497.9445488824. The cubic root of 1122112289 is about 1039.1512703848.

The spelling of 1122112289 in words is "one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred eighty-nine".