221220000210 has 32 divisors (see below), whose sum is σ = 579194183232. Its totient is φ = 53629090880.

The previous prime is 221220000191. The next prime is 221220000269. The reversal of 221220000210 is 12000022122.

221220000210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335181489 + ... + 335182148.

It is an arithmetic number, because the mean of its divisors is an integer number (18099818226).

Almost surely, 2^221220000210 is an apocalyptic number.

221220000210 is an abundant number, since it is smaller than the sum of its proper divisors (357974183022).

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

221220000210 is a wasteful number, since it uses less digits than its factorization.

221220000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670363658.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 221220000210 its reverse (12000022122), we get a palindrome (233220022332).

The spelling of 221220000210 in words is "two hundred twenty-one billion, two hundred twenty million, two hundred ten", and thus it is an aban number.