212201330 has 64 divisors (see below), whose sum is σ = 426902400. Its totient is φ = 75929920.

The previous prime is 212201239. The next prime is 212201333. The reversal of 212201330 is 33102212.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212201333) 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 31 ways as a sum of consecutive naturals, for example, 1424096 + ... + 1424244.

It is an arithmetic number, because the mean of its divisors is an integer number (6670350).

Almost surely, 2^212201330 is an apocalyptic number.

212201330 is an abundant number, since it is smaller than the sum of its proper divisors (214701070).

212201330 is a wasteful number, since it uses less digits than its factorization.

212201330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 212201330 is about 14567.1318384917. The cubic root of 212201330 is about 596.4618902723.

Adding to 212201330 its reverse (33102212), we get a palindrome (245303542).

The spelling of 212201330 in words is "two hundred twelve million, two hundred one thousand, three hundred thirty".