11203231222 has 32 divisors (see below), whose sum is σ = 17854693920. Its totient is φ = 5262808320.

The previous prime is 11203231211. The next prime is 11203231229. The reversal of 11203231222 is 22213230211.

It is a super-2 number, since 2×11203231222² (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 11203231222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203231229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938133 + ... + 949999.

It is an arithmetic number, because the mean of its divisors is an integer number (557959185).

Almost surely, 2^11203231222 is an apocalyptic number.

11203231222 is a deficient number, since it is larger than the sum of its proper divisors (6651462698).

11203231222 is a wasteful number, since it uses less digits than its factorization.

11203231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12336.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11203231222 its reverse (22213230211), we get a palindrome (33416461433).

The spelling of 11203231222 in words is "eleven billion, two hundred three million, two hundred thirty-one thousand, two hundred twenty-two".