211121211738067 has 2 divisors, whose sum is σ = 211121211738068. Its totient is φ = 211121211738066.

The previous prime is 211121211738049. The next prime is 211121211738071. The reversal of 211121211738067 is 760837112121112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211121211738067 is a prime.

It is not a weakly prime, because it can be changed into another prime (211121211738077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560605869033 + 105560605869034.

It is an arithmetic number, because the mean of its divisors is an integer number (105560605869034).

Almost surely, 2^{211121211738067} is an apocalyptic number.

211121211738067 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121211738067 is an equidigital number, since it uses as much as digits as its factorization.

211121211738067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 43.

Adding to 211121211738067 its reverse (760837112121112), we get a palindrome (971958323859179).

The spelling of 211121211738067 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred eleven million, seven hundred thirty-eight thousand, sixty-seven".