1112122321 has 2 divisors, whose sum is σ = 1112122322. Its totient is φ = 1112122320.

The previous prime is 1112122279. The next prime is 1112122331. The reversal of 1112122321 is 1232212111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034329921 + 77792400 = 32161^2 + 8820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112122321 - 2²⁹ = 575251409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112122295 and 1112122304.

It is not a weakly prime, because it can be changed into another prime (1112122331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556061160 + 556061161.

It is an arithmetic number, because the mean of its divisors is an integer number (556061161).

Almost surely, 2^1112122321 is an apocalyptic number.

It is an amenable number.

1112122321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112122321 is an equidigital number, since it uses as much as digits as its factorization.

1112122321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 16.

The square root of 1112122321 is about 33348.4980321453. The cubic root of 1112122321 is about 1036.0582798046.

Adding to 1112122321 its reverse (1232212111), we get a palindrome (2344334432).

The spelling of 1112122321 in words is "one billion, one hundred twelve million, one hundred twenty-two thousand, three hundred twenty-one".