211017121206 has 32 divisors (see below), whose sum is σ = 456253244160. Its totient is φ = 64835984736.

The previous prime is 211017121193. The next prime is 211017121207. The reversal of 211017121206 is 602121710112.

211017121206 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211017121207) 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, 25009666 + ... + 25018101.

It is an arithmetic number, because the mean of its divisors is an integer number (14257913880).

Almost surely, 2^211017121206 is an apocalyptic number.

211017121206 is an abundant number, since it is smaller than the sum of its proper divisors (245236122954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211017121206 is a wasteful number, since it uses less digits than its factorization.

211017121206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50027828.

The product of its (nonzero) digits is 336, while the sum is 24.

Adding to 211017121206 its reverse (602121710112), we get a palindrome (813138831318).

The spelling of 211017121206 in words is "two hundred eleven billion, seventeen million, one hundred twenty-one thousand, two hundred six".