221110442210 has 32 divisors (see below), whose sum is σ = 469528538112. Its totient is φ = 73363832640.

The previous prime is 221110442209. The next prime is 221110442213. The reversal of 221110442210 is 12244011122.

It is not an unprimeable number, because it can be changed into a prime (221110442213) 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, 50944937 + ... + 50949276.

It is an arithmetic number, because the mean of its divisors is an integer number (14672766816).

Almost surely, 2^221110442210 is an apocalyptic number.

221110442210 is an abundant number, since it is smaller than the sum of its proper divisors (248418095902).

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

221110442210 is a wasteful number, since it uses less digits than its factorization.

221110442210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101894258.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221110442210 its reverse (12244011122), we get a palindrome (233354453332).

The spelling of 221110442210 in words is "two hundred twenty-one billion, one hundred ten million, four hundred forty-two thousand, two hundred ten".