221133312211 has 24 divisors (see below), whose sum is σ = 258152106240. Its totient is φ = 188869180752.

The previous prime is 221133312193. The next prime is 221133312217. The reversal of 221133312211 is 112213331122.

221133312211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221133312211 - 2³³ = 212543377619 is a prime.

It is a super-3 number, since 3×221133312211³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (221133312217) 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 23 ways as a sum of consecutive naturals, for example, 27138840 + ... + 27146986.

It is an arithmetic number, because the mean of its divisors is an integer number (10756337760).

Almost surely, 2^221133312211 is an apocalyptic number.

221133312211 is a deficient number, since it is larger than the sum of its proper divisors (37018794029).

221133312211 is a wasteful number, since it uses less digits than its factorization.

221133312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063 (or 10056 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 221133312211 its reverse (112213331122), we get a palindrome (333346643333).

The spelling of 221133312211 in words is "two hundred twenty-one billion, one hundred thirty-three million, three hundred twelve thousand, two hundred eleven".