1121445601 has 2 divisors, whose sum is σ = 1121445602. Its totient is φ = 1121445600.

The previous prime is 1121445583. The next prime is 1121445623. The reversal of 1121445601 is 1065441211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813618576 + 307827025 = 28524^2 + 17545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121445601 - 2¹⁹ = 1120921313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121445641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560722800 + 560722801.

It is an arithmetic number, because the mean of its divisors is an integer number (560722801).

Almost surely, 2^1121445601 is an apocalyptic number.

It is an amenable number.

1121445601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121445601 is an equidigital number, since it uses as much as digits as its factorization.

1121445601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1121445601 is about 33487.9918926173. The cubic root of 1121445601 is about 1038.9454303400.

Adding to 1121445601 its reverse (1065441211), we get a palindrome (2186886812).

The spelling of 1121445601 in words is "one billion, one hundred twenty-one million, four hundred forty-five thousand, six hundred one".