21102222133 has 8 divisors (see below), whose sum is σ = 21791847680. Its totient is φ = 20413153440.

The previous prime is 21102222109. The next prime is 21102222191. The reversal of 21102222133 is 33122220112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21102222133 - 2⁵ = 21102222101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21102222133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102222233) 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 7 ways as a sum of consecutive naturals, for example, 61488 + ... + 214441.

It is an arithmetic number, because the mean of its divisors is an integer number (2723980960).

Almost surely, 2^21102222133 is an apocalyptic number.

It is an amenable number.

21102222133 is a deficient number, since it is larger than the sum of its proper divisors (689625547).

21102222133 is a wasteful number, since it uses less digits than its factorization.

21102222133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278427.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21102222133 its reverse (33122220112), we get a palindrome (54224442245).

The spelling of 21102222133 in words is "twenty-one billion, one hundred two million, two hundred twenty-two thousand, one hundred thirty-three".