11012231222 has 4 divisors (see below), whose sum is σ = 16518346836. Its totient is φ = 5506115610.

The previous prime is 11012231221. The next prime is 11012231239. The reversal of 11012231222 is 22213221011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22213221011 = 19433 ⋅1143067.

It is a super-2 number, since 2×11012231222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11012231222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012231221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2753057804 + ... + 2753057807.

It is an arithmetic number, because the mean of its divisors is an integer number (4129586709).

Almost surely, 2^11012231222 is an apocalyptic number.

11012231222 is a deficient number, since it is larger than the sum of its proper divisors (5506115614).

11012231222 is an equidigital number, since it uses as much as digits as its factorization.

11012231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506115613.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11012231222 its reverse (22213221011), we get a palindrome (33225452233).

The spelling of 11012231222 in words is "eleven billion, twelve million, two hundred thirty-one thousand, two hundred twenty-two".