210210021021113 has 2 divisors, whose sum is σ = 210210021021114. Its totient is φ = 210210021021112.

The previous prime is 210210021021083. The next prime is 210210021021149. The reversal of 210210021021113 is 311120120012012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161366513872144 + 48843507148969 = 12703012^2 + 6988813^2 .

It is a cyclic number.

It is not a de Polignac number, because 210210021021113 - 2¹⁰ = 210210021020089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210210021021091 and 210210021021100.

It is not a weakly prime, because it can be changed into another prime (210210023021113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105010510556 + 105105010510557.

It is an arithmetic number, because the mean of its divisors is an integer number (105105010510557).

Almost surely, 2^{210210021021113} is an apocalyptic number.

It is an amenable number.

210210021021113 is a deficient number, since it is larger than the sum of its proper divisors (1).

210210021021113 is an equidigital number, since it uses as much as digits as its factorization.

210210021021113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 210210021021113 its reverse (311120120012012), we get a palindrome (521330141033125).

The spelling of 210210021021113 in words is "two hundred ten trillion, two hundred ten billion, twenty-one million, twenty-one thousand, one hundred thirteen".