212111222041 has 2 divisors, whose sum is σ = 212111222042. Its totient is φ = 212111222040.

The previous prime is 212111222027. The next prime is 212111222077. The reversal of 212111222041 is 140222111212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174126771225 + 37984450816 = 417285^2 + 194896^2 .

It is a cyclic number.

It is not a de Polignac number, because 212111222041 - 2¹³ = 212111213849 is a prime.

It is not a weakly prime, because it can be changed into another prime (212111222341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055611020 + 106055611021.

It is an arithmetic number, because the mean of its divisors is an integer number (106055611021).

Almost surely, 2^212111222041 is an apocalyptic number.

It is an amenable number.

212111222041 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111222041 is an equidigital number, since it uses as much as digits as its factorization.

212111222041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212111222041 its reverse (140222111212), we get a palindrome (352333333253).

The spelling of 212111222041 in words is "two hundred twelve billion, one hundred eleven million, two hundred twenty-two thousand, forty-one".