21101333204 has 24 divisors (see below), whose sum is σ = 42221540928. Its totient is φ = 9039384000.

The previous prime is 21101333203. The next prime is 21101333213. The reversal of 21101333204 is 40233310112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101333203) 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, 104369 + ... + 230424.

It is an arithmetic number, because the mean of its divisors is an integer number (1759230872).

Almost surely, 2^21101333204 is an apocalyptic number.

It is an amenable number.

21101333204 is an abundant number, since it is smaller than the sum of its proper divisors (21120207724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21101333204 is a wasteful number, since it uses less digits than its factorization.

21101333204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337055 (or 337053 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21101333204 its reverse (40233310112), we get a palindrome (61334643316).

The spelling of 21101333204 in words is "twenty-one billion, one hundred one million, three hundred thirty-three thousand, two hundred four".