211101121201999 has 24 divisors (see below), whose sum is σ = 254626738924320. Its totient is φ = 171418980238272.

The previous prime is 211101121201973. The next prime is 211101121202039. The reversal of 211101121201999 is 999102121101112.

It is a happy number.

It is not a de Polignac number, because 211101121201999 - 2²⁷ = 211100986984271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211101121201099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366402597 + ... + 366978289.

It is an arithmetic number, because the mean of its divisors is an integer number (10609447455180).

Almost surely, 2^{211101121201999} is an apocalyptic number.

211101121201999 is a deficient number, since it is larger than the sum of its proper divisors (43525617722321).

211101121201999 is a wasteful number, since it uses less digits than its factorization.

211101121201999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720847 (or 720828 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 211101121201999 in words is "two hundred eleven trillion, one hundred one billion, one hundred twenty-one million, two hundred one thousand, nine hundred ninety-nine".