21001200003333 has 12 divisors (see below), whose sum is σ = 33092800005408. Its totient is φ = 12728000001960.

The previous prime is 21001200003299. The next prime is 21001200003341. The reversal of 21001200003333 is 33330000210012.

21001200003333 is a `hidden beast` number, since 210 + 0 + 120 + 0 + 0 + 0 + 3 + 333 = 666.

It is not a de Polignac number, because 21001200003333 - 2⁶ = 21001200003269 is a prime.

It is a super-2 number, since 2×21001200003333² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001200002333) 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 11 ways as a sum of consecutive naturals, for example, 106066666585 + ... + 106066666782.

It is an arithmetic number, because the mean of its divisors is an integer number (2757733333784).

Almost surely, 2^{21001200003333} is an apocalyptic number.

It is an amenable number.

21001200003333 is a deficient number, since it is larger than the sum of its proper divisors (12091600002075).

21001200003333 is a wasteful number, since it uses less digits than its factorization.

21001200003333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212133333384 (or 212133333381 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 21001200003333 its reverse (33330000210012), we get a palindrome (54331200213345).

The spelling of 21001200003333 in words is "twenty-one trillion, one billion, two hundred million, three thousand, three hundred thirty-three".