21010210000133 has 2 divisors, whose sum is σ = 21010210000134. Its totient is φ = 21010210000132.

The previous prime is 21010210000057. The next prime is 21010210000139. The reversal of 21010210000133 is 33100001201012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19041851507809 + 1968358492324 = 4363697^2 + 1402982^2 .

It is a cyclic number.

It is not a de Polignac number, because 21010210000133 - 2³⁶ = 20941490523397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010210000139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505105000066 + 10505105000067.

It is an arithmetic number, because the mean of its divisors is an integer number (10505105000067).

Almost surely, 2^{21010210000133} is an apocalyptic number.

It is an amenable number.

21010210000133 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010210000133 is an equidigital number, since it uses as much as digits as its factorization.

21010210000133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21010210000133 its reverse (33100001201012), we get a palindrome (54110211201145).

The spelling of 21010210000133 in words is "twenty-one trillion, ten billion, two hundred ten million, one hundred thirty-three", and thus it is an aban number.