321242122 has 4 divisors (see below), whose sum is σ = 481863186. Its totient is φ = 160621060.

The previous prime is 321242111. The next prime is 321242123. The reversal of 321242122 is 221242123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221242123 = 733 ⋅301831.

It can be written as a sum of positive squares in only one way, i.e., 299255401 + 21986721 = 17299^2 + 4689^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 321242122.

It is not an unprimeable number, because it can be changed into a prime (321242123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80310529 + ... + 80310532.

Almost surely, 2^321242122 is an apocalyptic number.

321242122 is a deficient number, since it is larger than the sum of its proper divisors (160621064).

321242122 is a wasteful number, since it uses less digits than its factorization.

321242122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160621063.

The product of its digits is 384, while the sum is 19.

The square root of 321242122 is about 17923.2285596095. The cubic root of 321242122 is about 684.8742355293.

Adding to 321242122 its reverse (221242123), we get a palindrome (542484245).

Subtracting from 321242122 its reverse (221242123), we obtain a palindrome (99999999).

The spelling of 321242122 in words is "three hundred twenty-one million, two hundred forty-two thousand, one hundred twenty-two".