13213221121434 has 16 divisors (see below), whose sum is σ = 26744833114272. Its totient is φ = 4351341895248.

The previous prime is 13213221121423. The next prime is 13213221121439. The reversal of 13213221121434 is 43412112231231.

It is not an unprimeable number, because it can be changed into a prime (13213221121439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13266285769 + ... + 13266286764.

It is an arithmetic number, because the mean of its divisors is an integer number (1671552069642).

Almost surely, 2^{13213221121434} is an apocalyptic number.

13213221121434 is an abundant number, since it is smaller than the sum of its proper divisors (13531611992838).

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

13213221121434 is a wasteful number, since it uses less digits than its factorization.

13213221121434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26532572621.

The product of its digits is 6912, while the sum is 30.

Adding to 13213221121434 its reverse (43412112231231), we get a palindrome (56625333352665).

The spelling of 13213221121434 in words is "thirteen trillion, two hundred thirteen billion, two hundred twenty-one million, one hundred twenty-one thousand, four hundred thirty-four".