13131211222 has 8 divisors (see below), whose sum is σ = 19697332536. Its totient is φ = 6565433712.

The previous prime is 13131211207. The next prime is 13131211241. The reversal of 13131211222 is 22211213131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13131211222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57258 + ... + 171874.

It is an arithmetic number, because the mean of its divisors is an integer number (2462166567).

Almost surely, 2^13131211222 is an apocalyptic number.

13131211222 is a deficient number, since it is larger than the sum of its proper divisors (6566121314).

13131211222 is a wasteful number, since it uses less digits than its factorization.

13131211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171902.

The product of its digits is 144, while the sum is 19.

Adding to 13131211222 its reverse (22211213131), we get a palindrome (35342424353).

The spelling of 13131211222 in words is "thirteen billion, one hundred thirty-one million, two hundred eleven thousand, two hundred twenty-two".