13213121320212 has 48 divisors (see below), whose sum is σ = 33898229686272. Its totient is φ = 3972448781280.

The previous prime is 13213121320177. The next prime is 13213121320237. The reversal of 13213121320212 is 21202312131231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394075378 + ... + 394108905.

It is an arithmetic number, because the mean of its divisors is an integer number (706213118464).

Almost surely, 2^{13213121320212} is an apocalyptic number.

13213121320212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13213121320212 is an abundant number, since it is smaller than the sum of its proper divisors (20685108366060).

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

13213121320212 is a wasteful number, since it uses less digits than its factorization.

13213121320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788184428 (or 788184426 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 13213121320212 its reverse (21202312131231), we get a palindrome (34415433451443).

The spelling of 13213121320212 in words is "thirteen trillion, two hundred thirteen billion, one hundred twenty-one million, three hundred twenty thousand, two hundred twelve".