211131214 has 16 divisors (see below), whose sum is σ = 377676288. Its totient is φ = 86550552.

The previous prime is 211131203. The next prime is 211131227. The reversal of 211131214 is 412131112.

It is a super-2 number, since 2×211131214² = 89152779050227592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327522 + ... + 328165.

It is an arithmetic number, because the mean of its divisors is an integer number (23604768).

Almost surely, 2^211131214 is an apocalyptic number.

211131214 is a deficient number, since it is larger than the sum of its proper divisors (166545074).

211131214 is a wasteful number, since it uses less digits than its factorization.

211131214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655719.

The product of its digits is 48, while the sum is 16.

The square root of 211131214 is about 14530.3549165187. The cubic root of 211131214 is about 595.4575620283.

Adding to 211131214 its reverse (412131112), we get a palindrome (623262326).

The spelling of 211131214 in words is "two hundred eleven million, one hundred thirty-one thousand, two hundred fourteen".