211121101206 has 24 divisors (see below), whose sum is σ = 462144819864. Its totient is φ = 69648197760.

The previous prime is 211121101201. The next prime is 211121101207. The reversal of 211121101206 is 602101121112.

211121101206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121101201) 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 11 ways as a sum of consecutive naturals, for example, 60456760 + ... + 60460251.

It is an arithmetic number, because the mean of its divisors is an integer number (19256034161).

Almost surely, 2^211121101206 is an apocalyptic number.

211121101206 is an abundant number, since it is smaller than the sum of its proper divisors (251023718658).

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

211121101206 is a wasteful number, since it uses less digits than its factorization.

211121101206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120917116 (or 120917113 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 211121101206 its reverse (602101121112), we get a palindrome (813222222318).

The spelling of 211121101206 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred one thousand, two hundred six".