221000222210 has 48 divisors (see below), whose sum is σ = 402504201216. Its totient is φ = 87361573824.

The previous prime is 221000222203. The next prime is 221000222221. The reversal of 221000222210 is 12222000122.

221000222210 is digitally balanced in base 3, 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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109027217 + ... + 109029243.

It is an arithmetic number, because the mean of its divisors is an integer number (8385504192).

Almost surely, 2^221000222210 is an apocalyptic number.

221000222210 is a deficient number, since it is larger than the sum of its proper divisors (181503979006).

221000222210 is a wasteful number, since it uses less digits than its factorization.

221000222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221000222210 its reverse (12222000122), we get a palindrome (233222222332).

The spelling of 221000222210 in words is "two hundred twenty-one billion, two hundred twenty-two thousand, two hundred ten".