1211000222167 has 2 divisors, whose sum is σ = 1211000222168. Its totient is φ = 1211000222166.

The previous prime is 1211000222093. The next prime is 1211000222227. The reversal of 1211000222167 is 7612220001121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211000222167 - 2⁷ = 1211000222039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211000262167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605500111083 + 605500111084.

It is an arithmetic number, because the mean of its divisors is an integer number (605500111084).

Almost surely, 2^{1211000222167} is an apocalyptic number.

1211000222167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211000222167 is an equidigital number, since it uses as much as digits as its factorization.

1211000222167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 1211000222167 its reverse (7612220001121), we get a palindrome (8823220223288).

The spelling of 1211000222167 in words is "one trillion, two hundred eleven billion, two hundred twenty-two thousand, one hundred sixty-seven".