221211101133 has 72 divisors (see below), whose sum is σ = 364895076000. Its totient is φ = 127976734080.

The previous prime is 221211101117. The next prime is 221211101143. The reversal of 221211101133 is 331101112122.

221211101133 is a `hidden beast` number, since 221 + 211 + 101 + 133 = 666.

221211101133 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 221211101133 - 2⁴ = 221211101117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211101143) 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 71 ways as a sum of consecutive naturals, for example, 10278618 + ... + 10300116.

Almost surely, 2^221211101133 is an apocalyptic number.

It is an amenable number.

221211101133 is a deficient number, since it is larger than the sum of its proper divisors (143683974867).

221211101133 is a wasteful number, since it uses less digits than its factorization.

221211101133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21659 (or 21603 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 221211101133 its reverse (331101112122), we get a palindrome (552312213255).

The spelling of 221211101133 in words is "two hundred twenty-one billion, two hundred eleven million, one hundred one thousand, one hundred thirty-three".