21330312010200 has 144 divisors (see below), whose sum is σ = 71753891274000. Its totient is φ = 5678586950400.

The previous prime is 21330312010177. The next prime is 21330312010307. The reversal of 21330312010200 is 201021303312.

21330312010200 is a `hidden beast` number, since 2 + 1 + 330 + 3 + 120 + 10 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8813431 + ... + 10969830.

It is an arithmetic number, because the mean of its divisors is an integer number (498290911625).

Almost surely, 2^{21330312010200} is an apocalyptic number.

21330312010200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21330312010200 is an abundant number, since it is smaller than the sum of its proper divisors (50423579263800).

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

21330312010200 is a wasteful number, since it uses less digits than its factorization.

21330312010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19783882 (or 19783870 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21330312010200 its reverse (201021303312), we get a palindrome (21531333313512).

The spelling of 21330312010200 in words is "twenty-one trillion, three hundred thirty billion, three hundred twelve million, ten thousand, two hundred".