212221210002 has 32 divisors (see below), whose sum is σ = 428792823360. Its totient is φ = 70016719680.

The previous prime is 212221210001. The next prime is 212221210007. The reversal of 212221210002 is 200012122212.

It is not an unprimeable number, because it can be changed into a prime (212221210001) 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, 442993 + ... + 787835.

It is an arithmetic number, because the mean of its divisors is an integer number (13399775730).

Almost surely, 2^212221210002 is an apocalyptic number.

212221210002 is an abundant number, since it is smaller than the sum of its proper divisors (216571613358).

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

212221210002 is a wasteful number, since it uses less digits than its factorization.

212221210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345898.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212221210002 its reverse (200012122212), we get a palindrome (412233332214).

The spelling of 212221210002 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred ten thousand, two".