21330222133 has 12 divisors (see below), whose sum is σ = 24718637952. Its totient is φ = 18250454720.

The previous prime is 21330222131. The next prime is 21330222169. The reversal of 21330222133 is 33122203312.

It is not a de Polignac number, because 21330222133 - 2¹ = 21330222131 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 (21330222131) 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 11 ways as a sum of consecutive naturals, for example, 3351685 + ... + 3358042.

It is an arithmetic number, because the mean of its divisors is an integer number (2059886496).

Almost surely, 2^21330222133 is an apocalyptic number.

It is an amenable number.

21330222133 is a deficient number, since it is larger than the sum of its proper divisors (3388415819).

21330222133 is a wasteful number, since it uses less digits than its factorization.

21330222133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6709772 (or 6709755 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21330222133 its reverse (33122203312), we get a palindrome (54452425445).

The spelling of 21330222133 in words is "twenty-one billion, three hundred thirty million, two hundred twenty-two thousand, one hundred thirty-three".