322001222121 has 24 divisors (see below), whose sum is σ = 486696417480. Its totient is φ = 204924784896.

The previous prime is 322001222119. The next prime is 322001222129. The reversal of 322001222121 is 121222100223.

322001222121 is a `hidden beast` number, since 322 + 0 + 0 + 1 + 222 + 121 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 175614636096 + 146386586025 = 419064^2 + 382605^2 .

It is not a de Polignac number, because 322001222121 - 2¹ = 322001222119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 322001222094 and 322001222103.

It is not an unprimeable number, because it can be changed into a prime (322001222129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9104716 + ... + 9140013.

It is an arithmetic number, because the mean of its divisors is an integer number (20279017395).

Almost surely, 2^322001222121 is an apocalyptic number.

It is an amenable number.

322001222121 is a deficient number, since it is larger than the sum of its proper divisors (164695195359).

322001222121 is a wasteful number, since it uses less digits than its factorization.

322001222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18244825 (or 18244822 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 322001222121 its reverse (121222100223), we get a palindrome (443223322344).

The spelling of 322001222121 in words is "three hundred twenty-two billion, one million, two hundred twenty-two thousand, one hundred twenty-one".