212212967243 has 2 divisors, whose sum is σ = 212212967244. Its totient is φ = 212212967242.

The previous prime is 212212967221. The next prime is 212212967269. The reversal of 212212967243 is 342769212212.

212212967243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212212967243 - 2¹⁶ = 212212901707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212212967243.

It is not a weakly prime, because it can be changed into another prime (212212927243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106483621 + 106106483622.

It is an arithmetic number, because the mean of its divisors is an integer number (106106483622).

Almost surely, 2^212212967243 is an apocalyptic number.

212212967243 is a deficient number, since it is larger than the sum of its proper divisors (1).

212212967243 is an equidigital number, since it uses as much as digits as its factorization.

212212967243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The spelling of 212212967243 in words is "two hundred twelve billion, two hundred twelve million, nine hundred sixty-seven thousand, two hundred forty-three".