13122031222 has 16 divisors (see below), whose sum is σ = 20181313152. Its totient is φ = 6395215680.

The previous prime is 13122031193. The next prime is 13122031253. The reversal of 13122031222 is 22213022131.

It is a super-2 number, since 2×13122031222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13122031222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19963 + ... + 163225.

It is an arithmetic number, because the mean of its divisors is an integer number (1261332072).

Almost surely, 2^13122031222 is an apocalyptic number.

13122031222 is a deficient number, since it is larger than the sum of its proper divisors (7059281930).

13122031222 is a wasteful number, since it uses less digits than its factorization.

13122031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144423.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13122031222 its reverse (22213022131), we get a palindrome (35335053353).

Subtracting 13122031222 from its reverse (22213022131), we obtain a palindrome (9090990909).

The spelling of 13122031222 in words is "thirteen billion, one hundred twenty-two million, thirty-one thousand, two hundred twenty-two".