144320222 has 8 divisors (see below), whose sum is σ = 216727056. Its totient is φ = 72077872.

The previous prime is 144320207. The next prime is 144320243. The reversal of 144320222 is 222023441.

144320222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 144320194 and 144320203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38903 + ... + 42450.

It is an arithmetic number, because the mean of its divisors is an integer number (27090882).

Almost surely, 2^144320222 is an apocalyptic number.

144320222 is a deficient number, since it is larger than the sum of its proper divisors (72406834).

144320222 is an equidigital number, since it uses as much as digits as its factorization.

144320222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82242.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 144320222 is about 12013.3351738807. The cubic root of 144320222 is about 524.5365185377.

Adding to 144320222 its reverse (222023441), we get a palindrome (366343663).

The spelling of 144320222 in words is "one hundred forty-four million, three hundred twenty thousand, two hundred twenty-two".