1113312203221 has 2 divisors, whose sum is σ = 1113312203222. Its totient is φ = 1113312203220.

The previous prime is 1113312203197. The next prime is 1113312203251. The reversal of 1113312203221 is 1223022133111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611359791025 + 501952412196 = 781895^2 + 708486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113312203221 - 2²⁵ = 1113278648789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113312203192 and 1113312203201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113312203251) 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 as a sum of consecutive naturals, namely, 556656101610 + 556656101611.

It is an arithmetic number, because the mean of its divisors is an integer number (556656101611).

Almost surely, 2^{1113312203221} is an apocalyptic number.

It is an amenable number.

1113312203221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113312203221 is an equidigital number, since it uses as much as digits as its factorization.

1113312203221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1113312203221 its reverse (1223022133111), we get a palindrome (2336334336332).

The spelling of 1113312203221 in words is "one trillion, one hundred thirteen billion, three hundred twelve million, two hundred three thousand, two hundred twenty-one".