212233506 has 16 divisors (see below), whose sum is σ = 426481248. Its totient is φ = 70408800.

The previous prime is 212233499. The next prime is 212233519. The reversal of 212233506 is 605332212.

212233506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212233506² = 90086122138104072, which contains 22 as substring.

It is a Curzon 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, 82555 + ... + 85086.

It is an arithmetic number, because the mean of its divisors is an integer number (26655078).

Almost surely, 2^212233506 is an apocalyptic number.

212233506 is an abundant number, since it is smaller than the sum of its proper divisors (214247742).

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

212233506 is a wasteful number, since it uses less digits than its factorization.

212233506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167857.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 212233506 is about 14568.2362007211. The cubic root of 212233506 is about 596.4920358387.

Adding to 212233506 its reverse (605332212), we get a palindrome (817565718).

The spelling of 212233506 in words is "two hundred twelve million, two hundred thirty-three thousand, five hundred six".