1121445055 has 8 divisors (see below), whose sum is σ = 1345975344. Its totient is φ = 896995200.

The previous prime is 1121445041. The next prime is 1121445067. The reversal of 1121445055 is 5505441211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121445055 - 2⁵ = 1121445023 is a prime.

It is a super-2 number, since 2×1121445055² = 2515278022767906050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16695 + ... + 50215.

It is an arithmetic number, because the mean of its divisors is an integer number (168246918).

Almost surely, 2^1121445055 is an apocalyptic number.

1121445055 is a deficient number, since it is larger than the sum of its proper divisors (224530289).

1121445055 is an equidigital number, since it uses as much as digits as its factorization.

1121445055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40217.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1121445055 is about 33487.9837404404. The cubic root of 1121445055 is about 1038.9452617290.

Adding to 1121445055 its reverse (5505441211), we get a palindrome (6626886266).

The spelling of 1121445055 in words is "one billion, one hundred twenty-one million, four hundred forty-five thousand, fifty-five".