1112332121 has 2 divisors, whose sum is σ = 1112332122. Its totient is φ = 1112332120.

The previous prime is 1112332097. The next prime is 1112332139. The reversal of 1112332121 is 1212332111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1039417600 + 72914521 = 32240^2 + 8539^2 .

It is an emirp because it is prime and its reverse (1212332111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112332121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112332121.

It is not a weakly prime, because it can be changed into another prime (1112382121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556166060 + 556166061.

It is an arithmetic number, because the mean of its divisors is an integer number (556166061).

Almost surely, 2^1112332121 is an apocalyptic number.

It is an amenable number.

1112332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112332121 is an equidigital number, since it uses as much as digits as its factorization.

1112332121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 17.

The square root of 1112332121 is about 33351.6434527596. The cubic root of 1112332121 is about 1036.1234259238.

Adding to 1112332121 its reverse (1212332111), we get a palindrome (2324664232).

The spelling of 1112332121 in words is "one billion, one hundred twelve million, three hundred thirty-two thousand, one hundred twenty-one".