21330033112120 has 16 divisors (see below), whose sum is σ = 47992574502360. Its totient is φ = 8532013244832.

The previous prime is 21330033112117. The next prime is 21330033112127. The reversal of 21330033112120 is 2121133003312.

It is a super-2 number, since 2×21330033112120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21330033112091 and 21330033112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330033112127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266625413862 + ... + 266625413941.

Almost surely, 2^{21330033112120} is an apocalyptic number.

21330033112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21330033112120 is an abundant number, since it is smaller than the sum of its proper divisors (26662541390240).

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

21330033112120 is a wasteful number, since it uses less digits than its factorization.

21330033112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533250827814 (or 533250827810 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21330033112120 its reverse (2121133003312), we get a palindrome (23451166115432).

The spelling of 21330033112120 in words is "twenty-one trillion, three hundred thirty billion, thirty-three million, one hundred twelve thousand, one hundred twenty".