1122721760 has 48 divisors (see below), whose sum is σ = 2656989216. Its totient is φ = 448316928.

The previous prime is 1122721751. The next prime is 1122721771. The reversal of 1122721760 is 671272211.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 92357 + ... + 103803.

It is an arithmetic number, because the mean of its divisors is an integer number (55353942).

Almost surely, 2^1122721760 is an apocalyptic number.

1122721760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122721760 is an abundant number, since it is smaller than the sum of its proper divisors (1534267456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122721760 is a wasteful number, since it uses less digits than its factorization.

1122721760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12075 (or 12067 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 1122721760 is about 33507.0404542090. The cubic root of 1122721760 is about 1039.3393733464.

Adding to 1122721760 its reverse (671272211), we get a palindrome (1793993971).

The spelling of 1122721760 in words is "one billion, one hundred twenty-two million, seven hundred twenty-one thousand, seven hundred sixty".