212211366 has 16 divisors (see below), whose sum is σ = 424569600. Its totient is φ = 70712648.

The previous prime is 212211343. The next prime is 212211371. The reversal of 212211366 is 663112212.

212211366 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24295 + ... + 31853.

It is an arithmetic number, because the mean of its divisors is an integer number (26535600).

Almost surely, 2^212211366 is an apocalyptic number.

212211366 is an abundant number, since it is smaller than the sum of its proper divisors (212358234).

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

212211366 is a wasteful number, since it uses less digits than its factorization.

212211366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12243.

The product of its digits is 864, while the sum is 24.

The square root of 212211366 is about 14567.4763085443. The cubic root of 212211366 is about 596.4712932877.

Adding to 212211366 its reverse (663112212), we get a palindrome (875323578).

The spelling of 212211366 in words is "two hundred twelve million, two hundred eleven thousand, three hundred sixty-six".