212223321210 has 32 divisors (see below), whose sum is σ = 509812508160. Its totient is φ = 56539937088.

The previous prime is 212223321203. The next prime is 212223321217. The reversal of 212223321210 is 12123322212.

It is an interprime number because it is at equal distance from previous prime (212223321203) and next prime (212223321217).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212223321217) 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, 3276682 + ... + 3340821.

It is an arithmetic number, because the mean of its divisors is an integer number (15931640880).

Almost surely, 2^212223321210 is an apocalyptic number.

212223321210 is an abundant number, since it is smaller than the sum of its proper divisors (297589186950).

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

212223321210 is a wasteful number, since it uses less digits than its factorization.

212223321210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618582.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212223321210 its reverse (12123322212), we get a palindrome (224346643422).

The spelling of 212223321210 in words is "two hundred twelve billion, two hundred twenty-three million, three hundred twenty-one thousand, two hundred ten".