11122247 has 2 divisors, whose sum is σ = 11122248. Its totient is φ = 11122246.

The previous prime is 11122229. The next prime is 11122253. The reversal of 11122247 is 74222111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11122247 - 2¹⁰ = 11121223 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122217) 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, 5561123 + 5561124.

It is an arithmetic number, because the mean of its divisors is an integer number (5561124).

Almost surely, 2^11122247 is an apocalyptic number.

11122247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122247 is an equidigital number, since it uses as much as digits as its factorization.

11122247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 20.

The square root of 11122247 is about 3335.0032983492. The cubic root of 11122247 is about 223.2188391129.

Adding to 11122247 its reverse (74222111), we get a palindrome (85344358).

The spelling of 11122247 in words is "eleven million, one hundred twenty-two thousand, two hundred forty-seven".