1112253221 has 2 divisors, whose sum is σ = 1112253222. Its totient is φ = 1112253220.

The previous prime is 1112253209. The next prime is 1112253239. The reversal of 1112253221 is 1223522111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1106560225 + 5692996 = 33265^2 + 2386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112253221 - 2³⁰ = 38511397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112253193 and 1112253202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112253421) 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, 556126610 + 556126611.

It is an arithmetic number, because the mean of its divisors is an integer number (556126611).

Almost surely, 2^1112253221 is an apocalyptic number.

It is an amenable number.

1112253221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112253221 is an equidigital number, since it uses as much as digits as its factorization.

1112253221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 20.

The square root of 1112253221 is about 33350.4605815272. The cubic root of 1112253221 is about 1036.0989272243.

Adding to 1112253221 its reverse (1223522111), we get a palindrome (2335775332).

The spelling of 1112253221 in words is "one billion, one hundred twelve million, two hundred fifty-three thousand, two hundred twenty-one".