11213231222 has 4 divisors (see below), whose sum is σ = 16819846836. Its totient is φ = 5606615610.

The previous prime is 11213231219. The next prime is 11213231231. The reversal of 11213231222 is 22213231211.

11213231222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22213231211 = 1873 ⋅11859707.

It is a super-2 number, since 2×11213231222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11213231194 and 11213231203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803307804 + ... + 2803307807.

It is an arithmetic number, because the mean of its divisors is an integer number (4204961709).

Almost surely, 2^11213231222 is an apocalyptic number.

11213231222 is a deficient number, since it is larger than the sum of its proper divisors (5606615614).

11213231222 is an equidigital number, since it uses as much as digits as its factorization.

11213231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606615613.

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

Adding to 11213231222 its reverse (22213231211), we get a palindrome (33426462433).

The spelling of 11213231222 in words is "eleven billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred twenty-two".