11312113222 has 4 divisors (see below), whose sum is σ = 16968169836. Its totient is φ = 5656056610.

The previous prime is 11312113213. The next prime is 11312113223. The reversal of 11312113222 is 22231121311.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11312113222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312113223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828028304 + ... + 2828028307.

It is an arithmetic number, because the mean of its divisors is an integer number (4242042459).

Almost surely, 2^11312113222 is an apocalyptic number.

11312113222 is a deficient number, since it is larger than the sum of its proper divisors (5656056614).

11312113222 is an equidigital number, since it uses as much as digits as its factorization.

11312113222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656056613.

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

Adding to 11312113222 its reverse (22231121311), we get a palindrome (33543234533).

The spelling of 11312113222 in words is "eleven billion, three hundred twelve million, one hundred thirteen thousand, two hundred twenty-two".