1112100200021 has 2 divisors, whose sum is σ = 1112100200022. Its totient is φ = 1112100200020.

The previous prime is 1112100200009. The next prime is 1112100200039. The reversal of 1112100200021 is 1200020012111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 746347399396 + 365752800625 = 863914^2 + 604775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112100200021 - 2¹⁰ = 1112100198997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112100199975 and 1112100200011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112100200221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556050100010 + 556050100011.

It is an arithmetic number, because the mean of its divisors is an integer number (556050100011).

Almost surely, 2^{1112100200021} is an apocalyptic number.

It is an amenable number.

1112100200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112100200021 is an equidigital number, since it uses as much as digits as its factorization.

1112100200021 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 11.

Adding to 1112100200021 its reverse (1200020012111), we get a palindrome (2312120212132).

The spelling of 1112100200021 in words is "one trillion, one hundred twelve billion, one hundred million, two hundred thousand, twenty-one".