210022010110021 has 2 divisors, whose sum is σ = 210022010110022. Its totient is φ = 210022010110020.

The previous prime is 210022010109997. The next prime is 210022010110057. The reversal of 210022010110021 is 120011010220012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157620843621796 + 52401166488225 = 12554714^2 + 7238865^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022010110021 - 2⁷ = 210022010109893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210022010109983 and 210022010110010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210022010110061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105011005055010 + 105011005055011.

It is an arithmetic number, because the mean of its divisors is an integer number (105011005055011).

Almost surely, 2^{210022010110021} is an apocalyptic number.

It is an amenable number.

210022010110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

210022010110021 is an equidigital number, since it uses as much as digits as its factorization.

210022010110021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210022010110021 its reverse (120011010220012), we get a palindrome (330033020330033).

The spelling of 210022010110021 in words is "two hundred ten trillion, twenty-two billion, ten million, one hundred ten thousand, twenty-one".