212221200222210 has 16 divisors (see below), whose sum is σ = 509330880533376. Its totient is φ = 56592320059248.

The previous prime is 212221200222151. The next prime is 212221200222217. The reversal of 212221200222210 is 12222002122212.

It is not an unprimeable number, because it can be changed into a prime (212221200222217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3537020003674 + ... + 3537020003733.

It is an arithmetic number, because the mean of its divisors is an integer number (31833180033336).

Almost surely, 2^{212221200222210} is an apocalyptic number.

212221200222210 is an abundant number, since it is smaller than the sum of its proper divisors (297109680311166).

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

212221200222210 is a wasteful number, since it uses less digits than its factorization.

212221200222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074040007417.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 212221200222210 its reverse (12222002122212), we get a palindrome (224443202344422).

The spelling of 212221200222210 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred million, two hundred twenty-two thousand, two hundred ten".