321144422242 has 16 divisors (see below), whose sum is σ = 550540609920. Its totient is φ = 137631495168.

The previous prime is 321144422219. The next prime is 321144422243. The reversal of 321144422242 is 242224441123.

It is not an unprimeable number, because it can be changed into a prime (321144422243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1813218 + ... + 1982434.

It is an arithmetic number, because the mean of its divisors is an integer number (34408788120).

Almost surely, 2^321144422242 is an apocalyptic number.

321144422242 is a deficient number, since it is larger than the sum of its proper divisors (229396187678).

321144422242 is a wasteful number, since it uses less digits than its factorization.

321144422242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304785.

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

Adding to 321144422242 its reverse (242224441123), we get a palindrome (563368863365).

The spelling of 321144422242 in words is "three hundred twenty-one billion, one hundred forty-four million, four hundred twenty-two thousand, two hundred forty-two".