212101202020241 has 2 divisors, whose sum is σ = 212101202020242. Its totient is φ = 212101202020240.

The previous prime is 212101202020237. The next prime is 212101202020243. The reversal of 212101202020241 is 142020202101212.

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., 132266905540225 + 79834296480016 = 11500735^2 + 8935004^2 .

It is a cyclic number.

It is not a de Polignac number, because 212101202020241 - 2² = 212101202020237 is a prime.

Together with 212101202020243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212101202020243) 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, 106050601010120 + 106050601010121.

It is an arithmetic number, because the mean of its divisors is an integer number (106050601010121).

Almost surely, 2^{212101202020241} is an apocalyptic number.

It is an amenable number.

212101202020241 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101202020241 is an equidigital number, since it uses as much as digits as its factorization.

212101202020241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212101202020241 its reverse (142020202101212), we get a palindrome (354121404121453).

The spelling of 212101202020241 in words is "two hundred twelve trillion, one hundred one billion, two hundred two million, twenty thousand, two hundred forty-one".