21233322321012 has 18 divisors (see below), whose sum is σ = 53673120311538. Its totient is φ = 7077774106992.

The previous prime is 21233322320993. The next prime is 21233322321049. The reversal of 21233322321012 is 21012322333212.

21233322321012 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 3 + 322 + 321 + 0 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19698364864656 + 1534957456356 = 4438284^2 + 1238934^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 294907254423 + ... + 294907254494.

Almost surely, 2^{21233322321012} is an apocalyptic number.

It is an amenable number.

21233322321012 is an abundant number, since it is smaller than the sum of its proper divisors (32439797990526).

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

21233322321012 is a wasteful number, since it uses less digits than its factorization.

21233322321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589814508927 (or 589814508922 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 21233322321012 its reverse (21012322333212), we get a palindrome (42245644654224).

The spelling of 21233322321012 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twenty-two million, three hundred twenty-one thousand, twelve".