211121210100971 has 2 divisors, whose sum is σ = 211121210100972. Its totient is φ = 211121210100970.

The previous prime is 211121210100959. The next prime is 211121210101069. The reversal of 211121210100971 is 179001012121112.

211121210100971 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 211121210100971 - 2⁶ = 211121210100907 is a prime.

It is not a weakly prime, because it can be changed into another prime (211121210100901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560605050485 + 105560605050486.

It is an arithmetic number, because the mean of its divisors is an integer number (105560605050486).

Almost surely, 2^{211121210100971} is an apocalyptic number.

211121210100971 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121210100971 is an equidigital number, since it uses as much as digits as its factorization.

211121210100971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 29.

The spelling of 211121210100971 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred ten million, one hundred thousand, nine hundred seventy-one".