1112012011021 has 2 divisors, whose sum is σ = 1112012011022. Its totient is φ = 1112012011020.

The previous prime is 1112012010997. The next prime is 1112012011067. The reversal of 1112012011021 is 1201102102111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 641258217796 + 470753793225 = 800786^2 + 686115^2 .

It is an emirp because it is prime and its reverse (1201102102111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1112012011021 - 2¹⁷ = 1112011879949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112012010992 and 1112012011010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112012017021) 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, 556006005510 + 556006005511.

It is an arithmetic number, because the mean of its divisors is an integer number (556006005511).

Almost surely, 2^{1112012011021} is an apocalyptic number.

It is an amenable number.

1112012011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112012011021 is an equidigital number, since it uses as much as digits as its factorization.

1112012011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1112012011021 its reverse (1201102102111), we get a palindrome (2313114113132).

The spelling of 1112012011021 in words is "one trillion, one hundred twelve billion, twelve million, eleven thousand, twenty-one".