210211012191 has 16 divisors (see below), whose sum is σ = 280539344768. Its totient is φ = 140011740000.

The previous prime is 210211012171. The next prime is 210211012199. The reversal of 210211012191 is 191210112012.

It is not a de Polignac number, because 210211012191 - 2³⁵ = 175851273823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211012199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21226341 + ... + 21236241.

It is an arithmetic number, because the mean of its divisors is an integer number (17533709048).

Almost surely, 2^210211012191 is an apocalyptic number.

210211012191 is a deficient number, since it is larger than the sum of its proper divisors (70328332577).

210211012191 is a wasteful number, since it uses less digits than its factorization.

210211012191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15702.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 210211012191 in words is "two hundred ten billion, two hundred eleven million, twelve thousand, one hundred ninety-one".