211021002001191 has 16 divisors (see below), whose sum is σ = 281545430965344. Its totient is φ = 140588627985024.

The previous prime is 211021002001177. The next prime is 211021002001207. The reversal of 211021002001191 is 191100200120112.

It is not a de Polignac number, because 211021002001191 - 2⁴² = 206622955490087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211021002001151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113667585 + ... + 115509141.

It is an arithmetic number, because the mean of its divisors is an integer number (17596589435334).

Almost surely, 2^{211021002001191} is an apocalyptic number.

211021002001191 is a deficient number, since it is larger than the sum of its proper divisors (70524428964153).

211021002001191 is a wasteful number, since it uses less digits than its factorization.

211021002001191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866530.

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

The spelling of 211021002001191 in words is "two hundred eleven trillion, twenty-one billion, two million, one thousand, one hundred ninety-one".