21334337200 has 120 divisors (see below), whose sum is σ = 57843820080. Its totient is φ = 7490380800.

The previous prime is 21334337197. The next prime is 21334337209. The reversal of 21334337200 is 273343312.

It is not an unprimeable number, because it can be changed into a prime (21334337209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44002 + ... + 211198.

It is an arithmetic number, because the mean of its divisors is an integer number (482031834).

Almost surely, 2^21334337200 is an apocalyptic number.

21334337200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21334337200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28921910040).

21334337200 is an abundant number, since it is smaller than the sum of its proper divisors (36509482880).

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

21334337200 is a wasteful number, since it uses less digits than its factorization.

21334337200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167255 (or 167244 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 28.

The spelling of 21334337200 in words is "twenty-one billion, three hundred thirty-four million, three hundred thirty-seven thousand, two hundred".