111001225441 has 2 divisors, whose sum is σ = 111001225442. Its totient is φ = 111001225440.

The previous prime is 111001225429. The next prime is 111001225487. The reversal of 111001225441 is 144522100111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75880966225 + 35120259216 = 275465^2 + 187404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111001225441 is a prime.

It is not a weakly prime, because it can be changed into another prime (111001285441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500612720 + 55500612721.

It is an arithmetic number, because the mean of its divisors is an integer number (55500612721).

Almost surely, 2^111001225441 is an apocalyptic number.

It is an amenable number.

111001225441 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001225441 is an equidigital number, since it uses as much as digits as its factorization.

111001225441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 111001225441 its reverse (144522100111), we get a palindrome (255523325552).

The spelling of 111001225441 in words is "one hundred eleven billion, one million, two hundred twenty-five thousand, four hundred forty-one".