322144044020221 has 4 divisors (see below), whose sum is σ = 332535787375744. Its totient is φ = 311752300664700.

The previous prime is 322144044020213. The next prime is 322144044020257. The reversal of 322144044020221 is 122020440441223.

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 322144044020221 - 2³ = 322144044020213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 10391743355491 = 322144044020221 / (3 + 2 + 2 + 1 + 4 + 4 + 0 + 4 + 4 + 0 + 2 + 0 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322144044020261) 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, 5195871677715 + ... + 5195871677776.

It is an arithmetic number, because the mean of its divisors is an integer number (83133946843936).

Almost surely, 2^{322144044020221} is an apocalyptic number.

322144044020221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

322144044020221 is a deficient number, since it is larger than the sum of its proper divisors (10391743355523).

322144044020221 is a wasteful number, since it uses less digits than its factorization.

322144044020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10391743355522.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 322144044020221 its reverse (122020440441223), we get a palindrome (444164484461444).

The spelling of 322144044020221 in words is "three hundred twenty-two trillion, one hundred forty-four billion, forty-four million, twenty thousand, two hundred twenty-one".