144221122 has 8 divisors (see below), whose sum is σ = 217136700. Its totient is φ = 71842224.

The previous prime is 144221117. The next prime is 144221131. The reversal of 144221122 is 221122441.

It can be written as a sum of positive squares in 2 ways, for example, as 144216081 + 5041 = 12009^2 + 71^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 144221122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133497 + ... + 134572.

Almost surely, 2^144221122 is an apocalyptic number.

144221122 is a deficient number, since it is larger than the sum of its proper divisors (72915578).

144221122 is a wasteful number, since it uses less digits than its factorization.

144221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268340.

The product of its digits is 256, while the sum is 19.

The square root of 144221122 is about 12009.2098824194. The cubic root of 144221122 is about 524.4164303273.

Adding to 144221122 its reverse (221122441), we get a palindrome (365343563).

The spelling of 144221122 in words is "one hundred forty-four million, two hundred twenty-one thousand, one hundred twenty-two".