212221223230 has 32 divisors (see below), whose sum is σ = 385936967520. Its totient is φ = 84013891200.

The previous prime is 212221223213. The next prime is 212221223237. The reversal of 212221223230 is 32322122212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221223237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2523012 + ... + 2605768.

It is an arithmetic number, because the mean of its divisors is an integer number (12060530235).

Almost surely, 2^212221223230 is an apocalyptic number.

212221223230 is a deficient number, since it is larger than the sum of its proper divisors (173715744290).

212221223230 is a wasteful number, since it uses less digits than its factorization.

212221223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85404.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212221223230 its reverse (32322122212), we get a palindrome (244543345442).

The spelling of 212221223230 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty".