211216314 has 16 divisors (see below), whose sum is σ = 440799552. Its totient is φ = 67344288.

The previous prime is 211216303. The next prime is 211216319. The reversal of 211216314 is 413612112.

It is a super-2 number, since 2×211216314² = 89224662599493192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211216319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765139 + ... + 765414.

It is an arithmetic number, because the mean of its divisors is an integer number (27549972).

Almost surely, 2^211216314 is an apocalyptic number.

211216314 is an abundant number, since it is smaller than the sum of its proper divisors (229583238).

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

211216314 is a wasteful number, since it uses less digits than its factorization.

211216314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530581.

The product of its digits is 288, while the sum is 21.

The square root of 211216314 is about 14533.2829739189. The cubic root of 211216314 is about 595.5375543560.

Adding to 211216314 its reverse (413612112), we get a palindrome (624828426).

The spelling of 211216314 in words is "two hundred eleven million, two hundred sixteen thousand, three hundred fourteen".