211157052171 has 16 divisors (see below), whose sum is σ = 303658605600. Its totient is φ = 129746200320.

The previous prime is 211157052163. The next prime is 211157052199. The reversal of 211157052171 is 171250751112.

211157052171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211157052171 - 2³ = 211157052163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211157052671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4069746 + ... + 4121303.

It is an arithmetic number, because the mean of its divisors is an integer number (18978662850).

Almost surely, 2^211157052171 is an apocalyptic number.

211157052171 is a deficient number, since it is larger than the sum of its proper divisors (92501553429).

211157052171 is a wasteful number, since it uses less digits than its factorization.

211157052171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8191726.

The product of its (nonzero) digits is 4900, while the sum is 33.

The spelling of 211157052171 in words is "two hundred eleven billion, one hundred fifty-seven million, fifty-two thousand, one hundred seventy-one".