331213323032221 has 8 divisors (see below), whose sum is σ = 379350617272704. Its totient is φ = 283281305100720.

The previous prime is 331213323032219. The next prime is 331213323032231. The reversal of 331213323032221 is 122230323312133.

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 331213323032221 - 2¹ = 331213323032219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331213323032231) 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, 51319073785 + ... + 51319080238.

It is an arithmetic number, because the mean of its divisors is an integer number (47418827159088).

Almost surely, 2^{331213323032221} is an apocalyptic number.

It is an amenable number.

331213323032221 is a deficient number, since it is larger than the sum of its proper divisors (48137294240483).

331213323032221 is a wasteful number, since it uses less digits than its factorization.

331213323032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102638154491.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 331213323032221 its reverse (122230323312133), we get a palindrome (453443646344354).

The spelling of 331213323032221 in words is "three hundred thirty-one trillion, two hundred thirteen billion, three hundred twenty-three million, thirty-two thousand, two hundred twenty-one".