331221102212011 has 6 divisors (see below), whose sum is σ = 364069475985236. Its totient is φ = 301110092919900.

The previous prime is 331221102212009. The next prime is 331221102212023. The reversal of 331221102212011 is 110212201122133.

It is a happy number.

It is not a de Polignac number, because 331221102212011 - 2¹ = 331221102212009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331221102212911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1368682240425 + ... + 1368682240666.

Almost surely, 2^{331221102212011} is an apocalyptic number.

331221102212011 is a deficient number, since it is larger than the sum of its proper divisors (32848373773225).

331221102212011 is a wasteful number, since it uses less digits than its factorization.

331221102212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737364481113 (or 2737364481102 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 331221102212011 its reverse (110212201122133), we get a palindrome (441433303334144).

The spelling of 331221102212011 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, one hundred two million, two hundred twelve thousand, eleven".