13220121332 has 192 divisors, whose sum is σ = 28844605440. Its totient is φ = 5227622400.

The previous prime is 13220121307. The next prime is 13220121373. The reversal of 13220121332 is 23312102231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96497168 + ... + 96497304.

It is an arithmetic number, because the mean of its divisors is an integer number (150232320).

Almost surely, 2^13220121332 is an apocalyptic number.

It is an amenable number.

13220121332 is an abundant number, since it is smaller than the sum of its proper divisors (15624484108).

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

13220121332 is a wasteful number, since it uses less digits than its factorization.

13220121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13220121332 its reverse (23312102231), we get a palindrome (36532223563).

The spelling of 13220121332 in words is "thirteen billion, two hundred twenty million, one hundred twenty-one thousand, three hundred thirty-two".