21112200030001 has 2 divisors, whose sum is σ = 21112200030002. Its totient is φ = 21112200030000.

The previous prime is 21112200029909. The next prime is 21112200030017. The reversal of 21112200030001 is 10003000221112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19155292808976 + 1956907221025 = 4376676^2 + 1398895^2 .

It is a cyclic number.

It is not a de Polignac number, because 21112200030001 - 2¹⁷ = 21112199898929 is a prime.

It is not a weakly prime, because it can be changed into another prime (21112200030401) 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, 10556100015000 + 10556100015001.

It is an arithmetic number, because the mean of its divisors is an integer number (10556100015001).

Almost surely, 2^{21112200030001} is an apocalyptic number.

It is an amenable number.

21112200030001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112200030001 is an equidigital number, since it uses as much as digits as its factorization.

21112200030001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21112200030001 its reverse (10003000221112), we get a palindrome (31115200251113).

The spelling of 21112200030001 in words is "twenty-one trillion, one hundred twelve billion, two hundred million, thirty thousand, one".