212211221223167 has 2 divisors, whose sum is σ = 212211221223168. Its totient is φ = 212211221223166.

The previous prime is 212211221223139. The next prime is 212211221223217. The reversal of 212211221223167 is 761322122112212.

212211221223167 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 212211221223167 - 2²⁸ = 212210952787711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212211221223467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105610611583 + 106105610611584.

It is an arithmetic number, because the mean of its divisors is an integer number (106105610611584).

Almost surely, 2^{212211221223167} is an apocalyptic number.

212211221223167 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211221223167 is an equidigital number, since it uses as much as digits as its factorization.

212211221223167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

Adding to 212211221223167 its reverse (761322122112212), we get a palindrome (973533343335379).

The spelling of 212211221223167 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred sixty-seven".