144221201 has 4 divisors (see below), whose sum is σ = 150491712. Its totient is φ = 137950692.

The previous prime is 144221179. The next prime is 144221213. The reversal of 144221201 is 102122441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144221201 - 2²² = 140026897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144221201.

It is not an unprimeable number, because it can be changed into a prime (144221291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3135221 + ... + 3135266.

It is an arithmetic number, because the mean of its divisors is an integer number (37622928).

Almost surely, 2^144221201 is an apocalyptic number.

It is an amenable number.

144221201 is a deficient number, since it is larger than the sum of its proper divisors (6270511).

144221201 is an equidigital number, since it uses as much as digits as its factorization.

144221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270510.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 144221201 is about 12009.2131715612. The cubic root of 144221201 is about 524.4165260805.

Adding to 144221201 its reverse (102122441), we get a palindrome (246343642).

The spelling of 144221201 in words is "one hundred forty-four million, two hundred twenty-one thousand, two hundred one".