1112103132221 has 2 divisors, whose sum is σ = 1112103132222. Its totient is φ = 1112103132220.

The previous prime is 1112103132211. The next prime is 1112103132223. The reversal of 1112103132221 is 1222313012111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 727685772025 + 384417360196 = 853045^2 + 620014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112103132221 - 2⁶ = 1112103132157 is a prime.

It is a Sophie Germain prime.

Together with 1112103132223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1112103132193 and 1112103132202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112103132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556051566110 + 556051566111.

It is an arithmetic number, because the mean of its divisors is an integer number (556051566111).

Almost surely, 2^{1112103132221} is an apocalyptic number.

It is an amenable number.

1112103132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112103132221 is an equidigital number, since it uses as much as digits as its factorization.

1112103132221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1112103132221 its reverse (1222313012111), we get a palindrome (2334416144332).

The spelling of 1112103132221 in words is "one trillion, one hundred twelve billion, one hundred three million, one hundred thirty-two thousand, two hundred twenty-one".