11110220222221 has 24 divisors (see below), whose sum is σ = 11894367171456. Its totient is φ = 10375051714560.

The previous prime is 11110220222219. The next prime is 11110220222239. The reversal of 11110220222221 is 12222202201111.

It is not a de Polignac number, because 11110220222221 - 2¹ = 11110220222219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110220222281) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 250112205 + ... + 250156621.

It is an arithmetic number, because the mean of its divisors is an integer number (495598632144).

Almost surely, 2^{11110220222221} is an apocalyptic number.

It is an amenable number.

11110220222221 is a deficient number, since it is larger than the sum of its proper divisors (784146949235).

11110220222221 is a wasteful number, since it uses less digits than its factorization.

11110220222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51189 (or 51172 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11110220222221 its reverse (12222202201111), we get a palindrome (23332422423332).

The spelling of 11110220222221 in words is "eleven trillion, one hundred ten billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-one".