144332404212221 has 16 divisors (see below), whose sum is σ = 152328654796800. Its totient is φ = 136376149125888.

The previous prime is 144332404212209. The next prime is 144332404212239. The reversal of 144332404212221 is 122212404233441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144332404212221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144332404212251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411477305 + ... + 411827921.

It is an arithmetic number, because the mean of its divisors is an integer number (9520540924800).

Almost surely, 2^{144332404212221} is an apocalyptic number.

It is an amenable number.

144332404212221 is a deficient number, since it is larger than the sum of its proper divisors (7996250584579).

144332404212221 is a wasteful number, since it uses less digits than its factorization.

144332404212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407588.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 144332404212221 its reverse (122212404233441), we get a palindrome (266544808445662).

The spelling of 144332404212221 in words is "one hundred forty-four trillion, three hundred thirty-two billion, four hundred four million, two hundred twelve thousand, two hundred twenty-one".