211121214 has 16 divisors (see below), whose sum is σ = 423020928. Its totient is φ = 70243992.

The previous prime is 211121213. The next prime is 211121237. The reversal of 211121214 is 412121112.

211121214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211121193 and 211121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28882 + ... + 35445.

It is an arithmetic number, because the mean of its divisors is an integer number (26438808).

Almost surely, 2^211121214 is an apocalyptic number.

211121214 is an abundant number, since it is smaller than the sum of its proper divisors (211899714).

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

211121214 is a wasteful number, since it uses less digits than its factorization.

211121214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64879.

The product of its digits is 32, while the sum is 15.

The square root of 211121214 is about 14530.0108052265. The cubic root of 211121214 is about 595.4481608136.

Adding to 211121214 its reverse (412121112), we get a palindrome (623242326).

The spelling of 211121214 in words is "two hundred eleven million, one hundred twenty-one thousand, two hundred fourteen".