212221111210079 has 2 divisors, whose sum is σ = 212221111210080. Its totient is φ = 212221111210078.

The previous prime is 212221111210057. The next prime is 212221111210111. The reversal of 212221111210079 is 970012111122212.

It is an a-pointer prime, because the next prime (212221111210111) can be obtained adding 212221111210079 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212221111210079 - 2⁴⁰ = 211121599582303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212221111210279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110555605039 + 106110555605040.

It is an arithmetic number, because the mean of its divisors is an integer number (106110555605040).

Almost surely, 2^{212221111210079} is an apocalyptic number.

212221111210079 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221111210079 is an equidigital number, since it uses as much as digits as its factorization.

212221111210079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 212221111210079 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, seventy-nine".