21200210041 has 2 divisors, whose sum is σ = 21200210042. Its totient is φ = 21200210040.

The previous prime is 21200210029. The next prime is 21200210117. The reversal of 21200210041 is 14001200212.

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., 20237907600 + 962302441 = 142260^2 + 31021^2 .

It is a cyclic number.

It is not a de Polignac number, because 21200210041 - 2⁹ = 21200209529 is a prime.

It is not a weakly prime, because it can be changed into another prime (21200210641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600105020 + 10600105021.

It is an arithmetic number, because the mean of its divisors is an integer number (10600105021).

Almost surely, 2^21200210041 is an apocalyptic number.

It is an amenable number.

21200210041 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200210041 is an equidigital number, since it uses as much as digits as its factorization.

21200210041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21200210041 its reverse (14001200212), we get a palindrome (35201410253).

The spelling of 21200210041 in words is "twenty-one billion, two hundred million, two hundred ten thousand, forty-one".