212203222 has 48 divisors (see below), whose sum is σ = 408142800. Its totient is φ = 81816000.

The previous prime is 212203193. The next prime is 212203223. The reversal of 212203222 is 222302212.

212203222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212203196 and 212203205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212203223) 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 23 ways as a sum of consecutive naturals, for example, 107904 + ... + 109852.

It is an arithmetic number, because the mean of its divisors is an integer number (8502975).

Almost surely, 2^212203222 is an apocalyptic number.

212203222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212203222 is a deficient number, since it is larger than the sum of its proper divisors (195939578).

212203222 is a wasteful number, since it uses less digits than its factorization.

212203222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212203222 is about 14567.1967790649. The cubic root of 212203222 is about 596.4636629639.

Adding to 212203222 its reverse (222302212), we get a palindrome (434505434).

It can be divided in two parts, 21220 and 3222, that added together give a palindrome (24442).

The spelling of 212203222 in words is "two hundred twelve million, two hundred three thousand, two hundred twenty-two".