21010201133 has 2 divisors, whose sum is σ = 21010201134. Its totient is φ = 21010201132.

The previous prime is 21010201063. The next prime is 21010201189. The reversal of 21010201133 is 33110201012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11929445284 + 9080755849 = 109222^2 + 95293^2 .

It is a cyclic number.

It is not a de Polignac number, because 21010201133 - 2¹⁰ = 21010200109 is a prime.

It is a super-2 number, since 2×21010201133² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010201193) 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, 10505100566 + 10505100567.

It is an arithmetic number, because the mean of its divisors is an integer number (10505100567).

Almost surely, 2^21010201133 is an apocalyptic number.

It is an amenable number.

21010201133 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010201133 is an equidigital number, since it uses as much as digits as its factorization.

21010201133 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 14.

Adding to 21010201133 its reverse (33110201012), we get a palindrome (54120402145).

The spelling of 21010201133 in words is "twenty-one billion, ten million, two hundred one thousand, one hundred thirty-three".