212440323301 has 2 divisors, whose sum is σ = 212440323302. Its totient is φ = 212440323300.

The previous prime is 212440323289. The next prime is 212440323307. The reversal of 212440323301 is 103323044212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212381800801 + 58522500 = 460849^2 + 7650^2 .

It is a cyclic number.

It is not a de Polignac number, because 212440323301 - 2⁵ = 212440323269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212440323307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106220161650 + 106220161651.

It is an arithmetic number, because the mean of its divisors is an integer number (106220161651).

Almost surely, 2^212440323301 is an apocalyptic number.

It is an amenable number.

212440323301 is a deficient number, since it is larger than the sum of its proper divisors (1).

212440323301 is an equidigital number, since it uses as much as digits as its factorization.

212440323301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212440323301 its reverse (103323044212), we get a palindrome (315763367513).

The spelling of 212440323301 in words is "two hundred twelve billion, four hundred forty million, three hundred twenty-three thousand, three hundred one".