221220222102110 has 32 divisors (see below), whose sum is σ = 496452654277632. Its totient is φ = 68951757538080.

The previous prime is 221220222102097. The next prime is 221220222102233. The reversal of 221220222102110 is 11201222022122.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143649494102 + ... + 143649495641.

It is an arithmetic number, because the mean of its divisors is an integer number (15514145446176).

Almost surely, 2^{221220222102110} is an apocalyptic number.

221220222102110 is an abundant number, since it is smaller than the sum of its proper divisors (275232432175522).

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

221220222102110 is a wasteful number, since it uses less digits than its factorization.

221220222102110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287298989768.

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

Adding to 221220222102110 its reverse (11201222022122), we get a palindrome (232421444124232).

The spelling of 221220222102110 in words is "two hundred twenty-one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred two thousand, one hundred ten".