221002220110 has 24 divisors (see below), whose sum is σ = 462751588440. Its totient is φ = 75772189584.

The previous prime is 221002220057. The next prime is 221002220123. The reversal of 221002220110 is 11022200122.

It is a happy number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 225511980 + ... + 225512959.

It is an arithmetic number, because the mean of its divisors is an integer number (19281316185).

Almost surely, 2^221002220110 is an apocalyptic number.

221002220110 is an abundant number, since it is smaller than the sum of its proper divisors (241749368330).

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

221002220110 is a wasteful number, since it uses less digits than its factorization.

221002220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451024960 (or 451024953 counting only the distinct ones).

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

Adding to 221002220110 its reverse (11022200122), we get a palindrome (232024420232).

The spelling of 221002220110 in words is "two hundred twenty-one billion, two million, two hundred twenty thousand, one hundred ten".