21533341214244 has 96 divisors (see below), whose sum is σ = 50532425620992. Its totient is φ = 7136769024000.

The previous prime is 21533341214243. The next prime is 21533341214251. The reversal of 21533341214244 is 44241214333512.

It is not an unprimeable number, because it can be changed into a prime (21533341214243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5953368724 + ... + 5953372340.

It is an arithmetic number, because the mean of its divisors is an integer number (526379433552).

Almost surely, 2^{21533341214244} is an apocalyptic number.

It is an amenable number.

21533341214244 is an abundant number, since it is smaller than the sum of its proper divisors (28999084406748).

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

21533341214244 is a wasteful number, since it uses less digits than its factorization.

21533341214244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237 (or 7235 counting only the distinct ones).

The product of its digits is 276480, while the sum is 39.

Adding to 21533341214244 its reverse (44241214333512), we get a palindrome (65774555547756).

The spelling of 21533341214244 in words is "twenty-one trillion, five hundred thirty-three billion, three hundred forty-one million, two hundred fourteen thousand, two hundred forty-four".