212335224161 has 2 divisors, whose sum is σ = 212335224162. Its totient is φ = 212335224160.

The previous prime is 212335224119. The next prime is 212335224197. The reversal of 212335224161 is 161422533212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114628967761 + 97706256400 = 338569^2 + 312580^2 .

It is a cyclic number.

It is not a de Polignac number, because 212335224161 - 2⁶ = 212335224097 is a prime.

It is not a weakly prime, because it can be changed into another prime (212334224161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106167612080 + 106167612081.

It is an arithmetic number, because the mean of its divisors is an integer number (106167612081).

Almost surely, 2^212335224161 is an apocalyptic number.

It is an amenable number.

212335224161 is a deficient number, since it is larger than the sum of its proper divisors (1).

212335224161 is an equidigital number, since it uses as much as digits as its factorization.

212335224161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

Adding to 212335224161 its reverse (161422533212), we get a palindrome (373757757373).

The spelling of 212335224161 in words is "two hundred twelve billion, three hundred thirty-five million, two hundred twenty-four thousand, one hundred sixty-one".