12211330221311 has 32 divisors (see below), whose sum is σ = 13936951929600. Its totient is φ = 10617092075520.

The previous prime is 12211330221283. The next prime is 12211330221323. The reversal of 12211330221311 is 11312203311221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211330221311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211330221331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359806535 + ... + 359840471.

It is an arithmetic number, because the mean of its divisors is an integer number (435529747800).

Almost surely, 2^{12211330221311} is an apocalyptic number.

12211330221311 is a deficient number, since it is larger than the sum of its proper divisors (1725621708289).

12211330221311 is a wasteful number, since it uses less digits than its factorization.

12211330221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57299.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12211330221311 its reverse (11312203311221), we get a palindrome (23523533532532).

The spelling of 12211330221311 in words is "twelve trillion, two hundred eleven billion, three hundred thirty million, two hundred twenty-one thousand, three hundred eleven".