11112010100021 has 2 divisors, whose sum is σ = 11112010100022. Its totient is φ = 11112010100020.

The previous prime is 11112010099951. The next prime is 11112010100027. The reversal of 11112010100021 is 12000101021111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11101624248100 + 10385851921 = 3331910^2 + 101911^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112010100021 - 2¹⁴ = 11112010083637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112010099975 and 11112010100011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112010100027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556005050010 + 5556005050011.

It is an arithmetic number, because the mean of its divisors is an integer number (5556005050011).

Almost surely, 2^{11112010100021} is an apocalyptic number.

It is an amenable number.

11112010100021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112010100021 is an equidigital number, since it uses as much as digits as its factorization.

11112010100021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11112010100021 its reverse (12000101021111), we get a palindrome (23112111121132).

The spelling of 11112010100021 in words is "eleven trillion, one hundred twelve billion, ten million, one hundred thousand, twenty-one".