221033222210 has 64 divisors (see below), whose sum is σ = 404685590400. Its totient is φ = 86908580352.

The previous prime is 221033222203. The next prime is 221033222213. The reversal of 221033222210 is 12222330122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221033222213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197880572 + ... + 197881688.

It is an arithmetic number, because the mean of its divisors is an integer number (6323212350).

Almost surely, 2^221033222210 is an apocalyptic number.

221033222210 is a deficient number, since it is larger than the sum of its proper divisors (183652368190).

221033222210 is a wasteful number, since it uses less digits than its factorization.

221033222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221033222210 its reverse (12222330122), we get a palindrome (233255552332).

The spelling of 221033222210 in words is "two hundred twenty-one billion, thirty-three million, two hundred twenty-two thousand, two hundred ten".