212203212 has 24 divisors (see below), whose sum is σ = 533228976. Its totient is φ = 65293248.

The previous prime is 212203193. The next prime is 212203223. The reversal of 212203212 is 212302212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212203191 and 212203200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679983 + ... + 680294.

It is an arithmetic number, because the mean of its divisors is an integer number (22217874).

Almost surely, 2^212203212 is an apocalyptic number.

It is an amenable number.

212203212 is an abundant number, since it is smaller than the sum of its proper divisors (321025764).

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

212203212 is a wasteful number, since it uses less digits than its factorization.

212203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360297 (or 1360295 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212203212 is about 14567.1964358280. The cubic root of 212203212 is about 596.4636535945.

Adding to 212203212 its reverse (212302212), we get a palindrome (424505424).

The spelling of 212203212 in words is "two hundred twelve million, two hundred three thousand, two hundred twelve".