11313121222 has 16 divisors (see below), whose sum is σ = 18287377920. Its totient is φ = 5217916032.

The previous prime is 11313121217. The next prime is 11313121231. The reversal of 11313121222 is 22212131311.

It is a self number, because there is not a number n which added to its sum of digits gives 11313121222.

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, 107398 + ... + 184825.

It is an arithmetic number, because the mean of its divisors is an integer number (1142961120).

Almost surely, 2^11313121222 is an apocalyptic number.

11313121222 is a deficient number, since it is larger than the sum of its proper divisors (6974256698).

11313121222 is a wasteful number, since it uses less digits than its factorization.

11313121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293727.

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

Adding to 11313121222 its reverse (22212131311), we get a palindrome (33525252533).

The spelling of 11313121222 in words is "eleven billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred twenty-two".