221111220100112 has 40 divisors (see below), whose sum is σ = 452665155581760. Its totient is φ = 104338654554240.

The previous prime is 221111220100081. The next prime is 221111220100129. The reversal of 221111220100112 is 211001022111122.

221111220100112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382694839 + ... + 1382854742.

It is an arithmetic number, because the mean of its divisors is an integer number (11316628889544).

Almost surely, 2^{221111220100112} is an apocalyptic number.

It is an amenable number.

221111220100112 is an abundant number, since it is smaller than the sum of its proper divisors (231553935481648).

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

221111220100112 is a wasteful number, since it uses less digits than its factorization.

221111220100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765549871 (or 2765549865 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221111220100112 its reverse (211001022111122), we get a palindrome (432112242211234).

The spelling of 221111220100112 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred twenty million, one hundred thousand, one hundred twelve".