21002332213200 has 240 divisors, whose sum is σ = 74219801253696. Its totient is φ = 5043711897600.

The previous prime is 21002332213157. The next prime is 21002332213211. The reversal of 21002332213200 is 231223320012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15778734 + ... + 17057933.

Almost surely, 2^{21002332213200} is an apocalyptic number.

21002332213200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21002332213200 is an abundant number, since it is smaller than the sum of its proper divisors (53217469040496).

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

21002332213200 is a wasteful number, since it uses less digits than its factorization.

21002332213200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32836742 (or 32836731 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21002332213200 its reverse (231223320012), we get a palindrome (21233555533212).

The spelling of 21002332213200 in words is "twenty-one trillion, two billion, three hundred thirty-two million, two hundred thirteen thousand, two hundred".