222388 has 12 divisors (see below), whose sum is σ = 396900. Its totient is φ = 108992.

The previous prime is 222379. The next prime is 222389. The reversal of 222388 is 883222.

222388 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 183184 + 39204 = 428^2 + 198^2 .

It is a plaindrome in base 10.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222389) by changing a digit.

222388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313 + ... + 736.

It is an arithmetic number, because the mean of its divisors is an integer number (33075).

2²²²³⁸⁸ is an apocalyptic number.

It is an amenable number.

222388 is a deficient number, since it is larger than the sum of its proper divisors (174512).

222388 is a wasteful number, since it uses less digits than its factorization.

222388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1104 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 222388 is about 471.5803218965. The cubic root of 222388 is about 60.5857445946.

The spelling of 222388 in words is "two hundred twenty-two thousand, three hundred eighty-eight".