11122481 has 2 divisors, whose sum is σ = 11122482. Its totient is φ = 11122480.

The previous prime is 11122451. The next prime is 11122493. The reversal of 11122481 is 18422111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11122225 + 256 = 3335^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122481 - 2⁶ = 11122417 is a prime.

It is a super-2 number, since 2×11122481² = 247419167190722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11122411) 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, 5561240 + 5561241.

It is an arithmetic number, because the mean of its divisors is an integer number (5561241).

Almost surely, 2^11122481 is an apocalyptic number.

It is an amenable number.

11122481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122481 is an equidigital number, since it uses as much as digits as its factorization.

11122481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 20.

The square root of 11122481 is about 3335.0383805887. The cubic root of 11122481 is about 223.2204045293.

Adding to 11122481 its reverse (18422111), we get a palindrome (29544592).

The spelling of 11122481 in words is "eleven million, one hundred twenty-two thousand, four hundred eighty-one".