222310144 has 72 divisors (see below), whose sum is σ = 511555968. Its totient is φ = 94448640.

The previous prime is 222310117. The next prime is 222310147. The reversal of 222310144 is 441013222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222310147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234279 + ... + 235225.

It is an arithmetic number, because the mean of its divisors is an integer number (7104944).

Almost surely, 2^222310144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222310144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255777984).

222310144 is an abundant number, since it is smaller than the sum of its proper divisors (289245824).

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

222310144 is an equidigital number, since it uses as much as digits as its factorization.

222310144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 222310144 is about 14910.0685444434. The cubic root of 222310144 is about 605.7867359811.

Adding to 222310144 its reverse (441013222), we get a palindrome (663323366).

The spelling of 222310144 in words is "two hundred twenty-two million, three hundred ten thousand, one hundred forty-four".