222266688 has 112 divisors (see below), whose sum is σ = 683727360. Its totient is φ = 62406144.

The previous prime is 222266663. The next prime is 222266689. The reversal of 222266688 is 886662222.

222266688 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 (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome 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 (222266689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77895 + ... + 80697.

Almost surely, 2^222266688 is an apocalyptic number.

222266688 is a gapful number since it is divisible by the number (28) 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 222266688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341863680).

222266688 is an abundant number, since it is smaller than the sum of its proper divisors (461460672).

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

222266688 is a wasteful number, since it uses less digits than its factorization.

222266688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884 (or 2874 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 222266688 is about 14908.6112029256. The cubic root of 222266688 is about 605.7472614233.

The spelling of 222266688 in words is "two hundred twenty-two million, two hundred sixty-six thousand, six hundred eighty-eight".