21334016143200 has 72 divisors (see below), whose sum is σ = 69442222553928. Its totient is φ = 5689070970880.

The previous prime is 21334016143199. The next prime is 21334016143211. The reversal of 21334016143200 is 234161043312.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 11 ways as a sum of consecutive naturals, for example, 4444584297 + ... + 4444589096.

It is an arithmetic number, because the mean of its divisors is an integer number (964475313249).

Almost surely, 2^{21334016143200} is an apocalyptic number.

21334016143200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21334016143200 is an abundant number, since it is smaller than the sum of its proper divisors (48108206410728).

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

21334016143200 is a wasteful number, since it uses less digits than its factorization.

21334016143200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8889173416 (or 8889173403 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 21334016143200 its reverse (234161043312), we get a palindrome (21568177186512).

The spelling of 21334016143200 in words is "twenty-one trillion, three hundred thirty-four billion, sixteen million, one hundred forty-three thousand, two hundred".