211120221211973 has 2 divisors, whose sum is σ = 211120221211974. Its totient is φ = 211120221211972.

The previous prime is 211120221211967. The next prime is 211120221212023. The reversal of 211120221211973 is 379112122021112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209591578289284 + 1528642922689 = 14477278^2 + 1236383^2 .

It is a cyclic number.

It is not a de Polignac number, because 211120221211973 - 2³⁴ = 211103041342789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211120221811973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560110605986 + 105560110605987.

It is an arithmetic number, because the mean of its divisors is an integer number (105560110605987).

Almost surely, 2^{211120221211973} is an apocalyptic number.

It is an amenable number.

211120221211973 is a deficient number, since it is larger than the sum of its proper divisors (1).

211120221211973 is an equidigital number, since it uses as much as digits as its factorization.

211120221211973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 211120221211973 in words is "two hundred eleven trillion, one hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, nine hundred seventy-three".