21330033003312 has 160 divisors (see below), whose sum is σ = 62099205396480. Its totient is φ = 6250282752000.

The previous prime is 21330033003299. The next prime is 21330033003403.

21330033003312 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20592862 + ... + 21603842.

It is an arithmetic number, because the mean of its divisors is an integer number (388120033728).

Almost surely, 2^{21330033003312} is an apocalyptic number.

21330033003312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21330033003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31049602698240).

21330033003312 is an abundant number, since it is smaller than the sum of its proper divisors (40769172393168).

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

21330033003312 is a wasteful number, since it uses less digits than its factorization.

21330033003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012323 (or 1012317 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

It can be divided in two parts, 2133003 and 3003312, that added together give a palindrome (5136315).

The spelling of 21330033003312 in words is "twenty-one trillion, three hundred thirty billion, thirty-three million, three thousand, three hundred twelve".