13121404134222 has 32 divisors (see below), whose sum is σ = 27193018913280. Its totient is φ = 4218008034240.

The previous prime is 13121404134199. The next prime is 13121404134277. The reversal of 13121404134222 is 22243140412131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13121404134222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321866679 + ... + 321907442.

It is an arithmetic number, because the mean of its divisors is an integer number (849781841040).

Almost surely, 2^{13121404134222} is an apocalyptic number.

13121404134222 is an abundant number, since it is smaller than the sum of its proper divisors (14071614779058).

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

13121404134222 is a wasteful number, since it uses less digits than its factorization.

13121404134222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643774248.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 13121404134222 its reverse (22243140412131), we get a palindrome (35364544546353).

The spelling of 13121404134222 in words is "thirteen trillion, one hundred twenty-one billion, four hundred four million, one hundred thirty-four thousand, two hundred twenty-two".