221120111000 has 32 divisors (see below), whose sum is σ = 517421062080. Its totient is φ = 88448044000.

The previous prime is 221120110997. The next prime is 221120111089. The reversal of 221120111000 is 111021122.

221120111000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110559056 + ... + 110561055.

It is an arithmetic number, because the mean of its divisors is an integer number (16169408190).

Almost surely, 2^221120111000 is an apocalyptic number.

221120111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221120111000 is an abundant number, since it is smaller than the sum of its proper divisors (296300951080).

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

221120111000 is a wasteful number, since it uses less digits than its factorization.

221120111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221120132 (or 221120118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221120111000 its reverse (111021122), we get a palindrome (221231132122).

The spelling of 221120111000 in words is "two hundred twenty-one billion, one hundred twenty million, one hundred eleven thousand".