211022120971 has 2 divisors, whose sum is σ = 211022120972. Its totient is φ = 211022120970.

The previous prime is 211022120909. The next prime is 211022121043. The reversal of 211022120971 is 179021220112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211022120971 - 2⁷ = 211022120843 is a prime.

It is not a weakly prime, because it can be changed into another prime (211022121971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105511060485 + 105511060486.

It is an arithmetic number, because the mean of its divisors is an integer number (105511060486).

Almost surely, 2^211022120971 is an apocalyptic number.

211022120971 is a deficient number, since it is larger than the sum of its proper divisors (1).

211022120971 is an equidigital number, since it uses as much as digits as its factorization.

211022120971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 211022120971 in words is "two hundred eleven billion, twenty-two million, one hundred twenty thousand, nine hundred seventy-one".