221200220110 has 16 divisors (see below), whose sum is σ = 401024862000. Its totient is φ = 87843540096.

The previous prime is 221200220083. The next prime is 221200220179. The reversal of 221200220110 is 11022002122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79567035 + ... + 79569814.

It is an arithmetic number, because the mean of its divisors is an integer number (25064053875).

Almost surely, 2^221200220110 is an apocalyptic number.

221200220110 is a deficient number, since it is larger than the sum of its proper divisors (179824641890).

221200220110 is a wasteful number, since it uses less digits than its factorization.

221200220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159136995.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221200220110 its reverse (11022002122), we get a palindrome (232222222232).

The spelling of 221200220110 in words is "two hundred twenty-one billion, two hundred million, two hundred twenty thousand, one hundred ten".