13121223332 has 36 divisors (see below), whose sum is σ = 26738791884. Its totient is φ = 5617543680.

The previous prime is 13121223331. The next prime is 13121223343. The reversal of 13121223332 is 23332212131.

13121223332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12578519716 + 542703616 = 112154^2 + 23296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13121223298 and 13121223307.

It is not an unprimeable number, because it can be changed into a prime (13121223331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157232 + ... + 225752.

It is an arithmetic number, because the mean of its divisors is an integer number (742744219).

Almost surely, 2^13121223332 is an apocalyptic number.

It is an amenable number.

13121223332 is an abundant number, since it is smaller than the sum of its proper divisors (13617568552).

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

13121223332 is a wasteful number, since it uses less digits than its factorization.

13121223332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69516 (or 69507 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 13121223332 its reverse (23332212131), we get a palindrome (36453435463).

The spelling of 13121223332 in words is "thirteen billion, one hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty-two".