221110110020112 has 80 divisors (see below), whose sum is σ = 581992167528000. Its totient is φ = 72311041793536.

The previous prime is 221110110020083. The next prime is 221110110020113. The reversal of 221110110020112 is 211020011011122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221110110020091 and 221110110020100.

It is not an unprimeable number, because it can be changed into a prime (221110110020113) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 109662418 + ... + 111660494.

It is an arithmetic number, because the mean of its divisors is an integer number (7274902094100).

Almost surely, 2^{221110110020112} is an apocalyptic number.

It is an amenable number.

221110110020112 is an abundant number, since it is smaller than the sum of its proper divisors (360882057507888).

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

221110110020112 is a wasteful number, since it uses less digits than its factorization.

221110110020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041640 (or 2041634 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221110110020112 its reverse (211020011011122), we get a palindrome (432130121031234).

The spelling of 221110110020112 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred ten million, twenty thousand, one hundred twelve".