222211111000 has 64 divisors (see below), whose sum is σ = 521346852000. Its totient is φ = 88649769600.

The previous prime is 222211110977. The next prime is 222211111009. The reversal of 222211111000 is 111112222.

222211111000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211111009) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 85846 + ... + 672154.

Almost surely, 2^222211111000 is an apocalyptic number.

222211111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222211111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260673426000).

222211111000 is an abundant number, since it is smaller than the sum of its proper divisors (299135741000).

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

222211111000 is a wasteful number, since it uses less digits than its factorization.

222211111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586709 (or 586695 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222211111000 its reverse (111112222), we get a palindrome (222322223222).

The spelling of 222211111000 in words is "two hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand".