331121212223321 has 8 divisors (see below), whose sum is σ = 360598727228040. Its totient is φ = 302216076150912.

The previous prime is 331121212223299. The next prime is 331121212223327. The reversal of 331121212223321 is 123322212121133.

It can be written as a sum of positive squares in 4 ways, for example, as 47659541080921 + 283461671142400 = 6903589^2 + 16836320^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331121212223321 - 2¹⁴ = 331121212206937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331121212223327) 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, 143094731870 + ... + 143094734183.

It is an arithmetic number, because the mean of its divisors is an integer number (45074840903505).

Almost surely, 2^{331121212223321} is an apocalyptic number.

It is an amenable number.

331121212223321 is a deficient number, since it is larger than the sum of its proper divisors (29477515004719).

331121212223321 is a wasteful number, since it uses less digits than its factorization.

331121212223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286189466155.

The product of its digits is 5184, while the sum is 29.

Adding to 331121212223321 its reverse (123322212121133), we get a palindrome (454443424344454).

The spelling of 331121212223321 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty-three thousand, three hundred twenty-one".