10210011218021 has 2 divisors, whose sum is σ = 10210011218022. Its totient is φ = 10210011218020.

The previous prime is 10210011217979. The next prime is 10210011218027. The reversal of 10210011218021 is 12081211001201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6552775705921 + 3657235512100 = 2559839^2 + 1912390^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210011218021 - 2¹⁰ = 10210011216997 is a prime.

It is a super-2 number, since 2×10210011218021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10210011217984 and 10210011218002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10210011218027) 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, 5105005609010 + 5105005609011.

It is an arithmetic number, because the mean of its divisors is an integer number (5105005609011).

Almost surely, 2^{10210011218021} is an apocalyptic number.

It is an amenable number.

10210011218021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10210011218021 is an equidigital number, since it uses as much as digits as its factorization.

10210011218021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 10210011218021 its reverse (12081211001201), we get a palindrome (22291222219222).

The spelling of 10210011218021 in words is "ten trillion, two hundred ten billion, eleven million, two hundred eighteen thousand, twenty-one".