221220110112 has 24 divisors (see below), whose sum is σ = 580702789296. Its totient is φ = 73740036672.

The previous prime is 221220110099. The next prime is 221220110141. The reversal of 221220110112 is 211011022122.

221220110112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 221220110091 and 221220110100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152187978 + ... + 1152188169.

It is an arithmetic number, because the mean of its divisors is an integer number (24195949554).

Almost surely, 2^221220110112 is an apocalyptic number.

It is an amenable number.

221220110112 is an abundant number, since it is smaller than the sum of its proper divisors (359482679184).

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

221220110112 is a wasteful number, since it uses less digits than its factorization.

221220110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304376160 (or 2304376152 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221220110112 its reverse (211011022122), we get a palindrome (432231132234).

The spelling of 221220110112 in words is "two hundred twenty-one billion, two hundred twenty million, one hundred ten thousand, one hundred twelve".