212212382 has 8 divisors (see below), whose sum is σ = 319173096. Its totient is φ = 105821352.

The previous prime is 212212367. The next prime is 212212409. The reversal of 212212382 is 283212212.

212212382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212212382² = 90068190148227848, 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 3 ways as a sum of consecutive naturals, for example, 141488 + ... + 142979.

It is an arithmetic number, because the mean of its divisors is an integer number (39896637).

Almost surely, 2^212212382 is an apocalyptic number.

212212382 is a deficient number, since it is larger than the sum of its proper divisors (106960714).

212212382 is a wasteful number, since it uses less digits than its factorization.

212212382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284842.

The product of its digits is 768, while the sum is 23.

The square root of 212212382 is about 14567.5111807062. The cubic root of 212212382 is about 596.4722451907.

Adding to 212212382 its reverse (283212212), we get a palindrome (495424594).

The spelling of 212212382 in words is "two hundred twelve million, two hundred twelve thousand, three hundred eighty-two".