13221213003122 has 4 divisors (see below), whose sum is σ = 19831819504686. Its totient is φ = 6610606501560.

The previous prime is 13221213003113. The next prime is 13221213003239. The reversal of 13221213003122 is 22130031212231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12131086986841 + 1090126016281 = 3482971^2 + 1044091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305303250779 + ... + 3305303250782.

Almost surely, 2^{13221213003122} is an apocalyptic number.

13221213003122 is a deficient number, since it is larger than the sum of its proper divisors (6610606501564).

13221213003122 is an equidigital number, since it uses as much as digits as its factorization.

13221213003122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610606501563.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13221213003122 its reverse (22130031212231), we get a palindrome (35351244215353).

The spelling of 13221213003122 in words is "thirteen trillion, two hundred twenty-one billion, two hundred thirteen million, three thousand, one hundred twenty-two".