144240124033221 has 4 divisors (see below), whose sum is σ = 192320165377632. Its totient is φ = 96160082688812.

The previous prime is 144240124033193. The next prime is 144240124033261. The reversal of 144240124033221 is 122330421042441.

144240124033221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 144240124033221 - 2⁹ = 144240124032709 is a prime.

It is a super-2 number, since 2×144240124033221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144240124033261) 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, 24040020672201 + ... + 24040020672206.

It is an arithmetic number, because the mean of its divisors is an integer number (48080041344408).

Almost surely, 2^{144240124033221} is an apocalyptic number.

It is an amenable number.

144240124033221 is a deficient number, since it is larger than the sum of its proper divisors (48080041344411).

144240124033221 is an equidigital number, since it uses as much as digits as its factorization.

144240124033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48080041344410.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 144240124033221 its reverse (122330421042441), we get a palindrome (266570545075662).

The spelling of 144240124033221 in words is "one hundred forty-four trillion, two hundred forty billion, one hundred twenty-four million, thirty-three thousand, two hundred twenty-one".