21200011202033 has 2 divisors, whose sum is σ = 21200011202034. Its totient is φ = 21200011202032.

The previous prime is 21200011201981. The next prime is 21200011202039. The reversal of 21200011202033 is 33020211000212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13432686793969 + 7767324408064 = 3665063^2 + 2786992^2 .

It is a cyclic number.

It is not a de Polignac number, because 21200011202033 - 2¹⁴ = 21200011185649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (21200011202039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600005601016 + 10600005601017.

It is an arithmetic number, because the mean of its divisors is an integer number (10600005601017).

Almost surely, 2^{21200011202033} is an apocalyptic number.

It is an amenable number.

21200011202033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200011202033 is an equidigital number, since it uses as much as digits as its factorization.

21200011202033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21200011202033 its reverse (33020211000212), we get a palindrome (54220222202245).

The spelling of 21200011202033 in words is "twenty-one trillion, two hundred billion, eleven million, two hundred two thousand, thirty-three".