331121330220211 has 4 divisors (see below), whose sum is σ = 339197460225624. Its totient is φ = 323045200214800.

The previous prime is 331121330220049. The next prime is 331121330220251. The reversal of 331121330220211 is 112022033121133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331121330220211 - 2²⁷ = 331121196002483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331121330220251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4038065002645 + ... + 4038065002726.

It is an arithmetic number, because the mean of its divisors is an integer number (84799365056406).

Almost surely, 2^{331121330220211} is an apocalyptic number.

331121330220211 is a deficient number, since it is larger than the sum of its proper divisors (8076130005413).

331121330220211 is an equidigital number, since it uses as much as digits as its factorization.

331121330220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8076130005412.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 331121330220211 its reverse (112022033121133), we get a palindrome (443143363341344).

The spelling of 331121330220211 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, three hundred thirty million, two hundred twenty thousand, two hundred eleven".