13112212222 has 4 divisors (see below), whose sum is σ = 19668318336. Its totient is φ = 6556106110.

The previous prime is 13112212219. The next prime is 13112212229. The reversal of 13112212222 is 22221221131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22221221131 = 33997 ⋅653623.

It is a self number, because there is not a number n which added to its sum of digits gives 13112212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112212229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278053054 + ... + 3278053057.

It is an arithmetic number, because the mean of its divisors is an integer number (4917079584).

Almost surely, 2^13112212222 is an apocalyptic number.

13112212222 is a deficient number, since it is larger than the sum of its proper divisors (6556106114).

13112212222 is an equidigital number, since it uses as much as digits as its factorization.

13112212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6556106113.

The product of its digits is 192, while the sum is 19.

Adding to 13112212222 its reverse (22221221131), we get a palindrome (35333433353).

The spelling of 13112212222 in words is "thirteen billion, one hundred twelve million, two hundred twelve thousand, two hundred twenty-two".