11313221222 has 4 divisors (see below), whose sum is σ = 16969831836. Its totient is φ = 5656610610.

The previous prime is 11313221207. The next prime is 11313221237. The reversal of 11313221222 is 22212231311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22212231311 = 443 ⋅50140477.

It is an interprime number because it is at equal distance from previous prime (11313221207) and next prime (11313221237).

It is a super-2 number, since 2×11313221222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11313221194 and 11313221203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828305304 + ... + 2828305307.

It is an arithmetic number, because the mean of its divisors is an integer number (4242457959).

Almost surely, 2^11313221222 is an apocalyptic number.

11313221222 is a deficient number, since it is larger than the sum of its proper divisors (5656610614).

11313221222 is an equidigital number, since it uses as much as digits as its factorization.

11313221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656610613.

The product of its digits is 288, while the sum is 20.

Adding to 11313221222 its reverse (22212231311), we get a palindrome (33525452533).

The spelling of 11313221222 in words is "eleven billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-two".