12213211330000 has 50 divisors (see below), whose sum is σ = 29569405975274. Its totient is φ = 4885284528000.

The previous prime is 12213211329983. The next prime is 12213211330007. The reversal of 12213211330000 is 3311231221.

It can be written as a sum of positive squares in 5 ways, for example, as 9294157071424 + 2919054258576 = 3048632^2 + 1708524^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a self number, because there is not a number n which added to its sum of digits gives 12213211330000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213211330007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 610650567 + ... + 610670566.

Almost surely, 2^{12213211330000} is an apocalyptic number.

12213211330000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213211330000 is an abundant number, since it is smaller than the sum of its proper divisors (17356194645274).

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

12213211330000 is an equidigital number, since it uses as much as digits as its factorization.

12213211330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221321161 (or 1221321140 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12213211330000 its reverse (3311231221), we get a palindrome (12216522561221).

The spelling of 12213211330000 in words is "twelve trillion, two hundred thirteen billion, two hundred eleven million, three hundred thirty thousand".