212122021967 has 2 divisors, whose sum is σ = 212122021968. Its totient is φ = 212122021966.

The previous prime is 212122021963. The next prime is 212122022027. The reversal of 212122021967 is 769120221212.

212122021967 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 212122021967 - 2² = 212122021963 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212122021963) 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, 106061010983 + 106061010984.

It is an arithmetic number, because the mean of its divisors is an integer number (106061010984).

Almost surely, 2^212122021967 is an apocalyptic number.

212122021967 is a deficient number, since it is larger than the sum of its proper divisors (1).

212122021967 is an equidigital number, since it uses as much as digits as its factorization.

212122021967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 212122021967 in words is "two hundred twelve billion, one hundred twenty-two million, twenty-one thousand, nine hundred sixty-seven".