21333323220000 has 240 divisors, whose sum is σ = 76339166172192. Its totient is φ = 5171714560000.

The previous prime is 21333323219983. The next prime is 21333323220031. The reversal of 21333323220000 is 2232333312.

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

It is a super-2 number, since 2×21333323220000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15501609 + ... + 16821608.

Almost surely, 2^{21333323220000} is an apocalyptic number.

21333323220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21333323220000 is an abundant number, since it is smaller than the sum of its proper divisors (55005842952192).

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

21333323220000 is a wasteful number, since it uses less digits than its factorization.

21333323220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32323261 (or 32323238 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21333323220000 its reverse (2232333312), we get a palindrome (21335555553312).

The spelling of 21333323220000 in words is "twenty-one trillion, three hundred thirty-three billion, three hundred twenty-three million, two hundred twenty thousand".