210010122212021 has 2 divisors, whose sum is σ = 210010122212022. Its totient is φ = 210010122212020.

The previous prime is 210010122212017. The next prime is 210010122212071. The reversal of 210010122212021 is 120212221010012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209742951075025 + 267171136996 = 14482505^2 + 516886^2 .

It is a cyclic number.

It is not a de Polignac number, because 210010122212021 - 2² = 210010122212017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210010122212071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005061106010 + 105005061106011.

It is an arithmetic number, because the mean of its divisors is an integer number (105005061106011).

Almost surely, 2^{210010122212021} is an apocalyptic number.

It is an amenable number.

210010122212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

210010122212021 is an equidigital number, since it uses as much as digits as its factorization.

210010122212021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210010122212021 its reverse (120212221010012), we get a palindrome (330222343222033).

The spelling of 210010122212021 in words is "two hundred ten trillion, ten billion, one hundred twenty-two million, two hundred twelve thousand, twenty-one".