21133311333112 has 192 divisors, whose sum is σ = 46790144208000. Its totient is φ = 8849717856000.

The previous prime is 21133311333077. The next prime is 21133311333119.

It is a happy number.

21133311333112 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133311333119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 707944987 + ... + 707974837.

It is an arithmetic number, because the mean of its divisors is an integer number (243698667750).

Almost surely, 2^{21133311333112} is an apocalyptic number.

21133311333112 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 21133311333112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23395072104000).

21133311333112 is an abundant number, since it is smaller than the sum of its proper divisors (25656832874888).

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

21133311333112 is a wasteful number, since it uses less digits than its factorization.

21133311333112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30202 (or 30155 counting only the distinct ones).

The product of its digits is 2916, while the sum is 28.

It can be divided in two parts, 2113331 and 1333112, that added together give a palindrome (3446443).

The spelling of 21133311333112 in words is "twenty-one trillion, one hundred thirty-three billion, three hundred eleven million, three hundred thirty-three thousand, one hundred twelve".