1113124221 has 32 divisors (see below), whose sum is σ = 1823667840. Its totient is φ = 665366400.

The previous prime is 1113124217. The next prime is 1113124289. The reversal of 1113124221 is 1224213111.

It is not a de Polignac number, because 1113124221 - 2² = 1113124217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113124194 and 1113124203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113124121) 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 in 31 ways as a sum of consecutive naturals, for example, 3990 + ... + 47351.

It is an arithmetic number, because the mean of its divisors is an integer number (56989620).

Almost surely, 2^1113124221 is an apocalyptic number.

1113124221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1113124221 is a deficient number, since it is larger than the sum of its proper divisors (710543619).

1113124221 is a wasteful number, since it uses less digits than its factorization.

1113124221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51434 (or 51428 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1113124221 is about 33363.5163164796. The cubic root of 1113124221 is about 1036.3693113074.

Adding to 1113124221 its reverse (1224213111), we get a palindrome (2337337332).

The spelling of 1113124221 in words is "one billion, one hundred thirteen million, one hundred twenty-four thousand, two hundred twenty-one".