21336044063312 has 30 divisors (see below), whose sum is σ = 45438279793914. Its totient is φ = 9698201846080.

The previous prime is 21336044063311. The next prime is 21336044063359.

21336044063312 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 19659682037776 + 1676362025536 = 4433924^2 + 1294744^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21336044063311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5510340023 + ... + 5510343894.

Almost surely, 2^{21336044063312} is an apocalyptic number.

21336044063312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21336044063312 is an abundant number, since it is smaller than the sum of its proper divisors (24102235730602).

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

21336044063312 is a wasteful number, since it uses less digits than its factorization.

21336044063312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020683947 (or 11020683930 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 38.

It can be divided in two parts, 2133604 and 4063312, that added together give a palindrome (6196916).

The spelling of 21336044063312 in words is "twenty-one trillion, three hundred thirty-six billion, forty-four million, sixty-three thousand, three hundred twelve".