322422221221 has 4 divisors (see below), whose sum is σ = 341388234252. Its totient is φ = 303456208192.

The previous prime is 322422221171. The next prime is 322422221227. The reversal of 322422221221 is 122122224223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122122224223 = 55259 ⋅2209997.

It can be written as a sum of positive squares in 2 ways, for example, as 284206272100 + 38215949121 = 533110^2 + 195489^2 .

It is a cyclic number.

It is not a de Polignac number, because 322422221221 - 2¹⁵ = 322422188453 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 (322422221227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9483006490 + ... + 9483006523.

It is an arithmetic number, because the mean of its divisors is an integer number (85347058563).

Almost surely, 2^322422221221 is an apocalyptic number.

It is an amenable number.

322422221221 is a deficient number, since it is larger than the sum of its proper divisors (18966013031).

322422221221 is a wasteful number, since it uses less digits than its factorization.

322422221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18966013030.

The product of its digits is 3072, while the sum is 25.

Adding to 322422221221 its reverse (122122224223), we get a palindrome (444544445444).

The spelling of 322422221221 in words is "three hundred twenty-two billion, four hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".