21101200033 has 2 divisors, whose sum is σ = 21101200034. Its totient is φ = 21101200032.

The previous prime is 21101200007. The next prime is 21101200051. The reversal of 21101200033 is 33000210112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20193262609 + 907937424 = 142103^2 + 30132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21101200033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21101199986 and 21101200022.

It is not a weakly prime, because it can be changed into another prime (21101200333) 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, 10550600016 + 10550600017.

It is an arithmetic number, because the mean of its divisors is an integer number (10550600017).

Almost surely, 2^21101200033 is an apocalyptic number.

It is an amenable number.

21101200033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101200033 is an equidigital number, since it uses as much as digits as its factorization.

21101200033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21101200033 its reverse (33000210112), we get a palindrome (54101410145).

The spelling of 21101200033 in words is "twenty-one billion, one hundred one million, two hundred thousand, thirty-three".