21330222203312 has 160 divisors (see below), whose sum is σ = 49823323228224. Its totient is φ = 8734684774400.

The previous prime is 21330222203299. The next prime is 21330222203399.

21330222203312 is nontrivially palindromic in base 10.

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, 4861238 + ... + 8141994.

Almost surely, 2^{21330222203312} is an apocalyptic number.

21330222203312 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 21330222203312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24911661614112).

21330222203312 is an abundant number, since it is smaller than the sum of its proper divisors (28493101024912).

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

21330222203312 is a wasteful number, since it uses less digits than its factorization.

21330222203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280887 (or 3280881 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

It can be divided in two parts, 2133022 and 2203312, that added together give a palindrome (4336334).

The spelling of 21330222203312 in words is "twenty-one trillion, three hundred thirty billion, two hundred twenty-two million, two hundred three thousand, three hundred twelve".