13013031222 has 12 divisors (see below), whose sum is σ = 28194901020. Its totient is φ = 4337677068.

The previous prime is 13013031221. The next prime is 13013031271. The reversal of 13013031222 is 22213031031.

13013031222 is a `hidden beast` number, since 1 + 301 + 30 + 312 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 722946179 = 13013031222 / (1 + 3 + 0 + 1 + 3 + 0 + 3 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 13013031195 and 13013031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013031221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361473072 + ... + 361473107.

It is an arithmetic number, because the mean of its divisors is an integer number (2349575085).

Almost surely, 2^13013031222 is an apocalyptic number.

13013031222 is an abundant number, since it is smaller than the sum of its proper divisors (15181869798).

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

13013031222 is a wasteful number, since it uses less digits than its factorization.

13013031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722946187 (or 722946184 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13013031222 its reverse (22213031031), we get a palindrome (35226062253).

The spelling of 13013031222 in words is "thirteen billion, thirteen million, thirty-one thousand, two hundred twenty-two".