331121212222321 has 8 divisors (see below), whose sum is σ = 338766995124864. Its totient is φ = 323500456433520.

The previous prime is 331121212222309. The next prime is 331121212222363. The reversal of 331121212222321 is 123222212121133.

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 331121212222321 - 2¹¹ = 331121212220273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331121212222321.

It is not an unprimeable number, because it can be changed into a prime (331121212222721) 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, 6256751670 + ... + 6256804591.

It is an arithmetic number, because the mean of its divisors is an integer number (42345874390608).

Almost surely, 2^{331121212222321} is an apocalyptic number.

It is an amenable number.

331121212222321 is a deficient number, since it is larger than the sum of its proper divisors (7645782902543).

331121212222321 is a wasteful number, since it uses less digits than its factorization.

331121212222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12513556871.

The product of its digits is 3456, while the sum is 28.

Adding to 331121212222321 its reverse (123222212121133), we get a palindrome (454343424343454).

The spelling of 331121212222321 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty-two thousand, three hundred twenty-one".