112223521 has 2 divisors, whose sum is σ = 112223522. Its totient is φ = 112223520.

The previous prime is 112223497. The next prime is 112223537. The reversal of 112223521 is 125322211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110481121 + 1742400 = 10511^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 112223521 - 2⁹ = 112223009 is a prime.

It is not a weakly prime, because it can be changed into another prime (112223581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56111760 + 56111761.

It is an arithmetic number, because the mean of its divisors is an integer number (56111761).

Almost surely, 2^112223521 is an apocalyptic number.

It is an amenable number.

112223521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112223521 is an equidigital number, since it uses as much as digits as its factorization.

112223521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 112223521 is about 10593.5603552347. The cubic root of 112223521 is about 482.3489048761.

Adding to 112223521 its reverse (125322211), we get a palindrome (237545732).

The spelling of 112223521 in words is "one hundred twelve million, two hundred twenty-three thousand, five hundred twenty-one".