11103221212 has 6 divisors (see below), whose sum is σ = 19430637128. Its totient is φ = 5551610604.

The previous prime is 11103221189. The next prime is 11103221219. The reversal of 11103221212 is 21212230111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103221219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387902648 + ... + 1387902655.

Almost surely, 2^11103221212 is an apocalyptic number.

It is an amenable number.

11103221212 is a deficient number, since it is larger than the sum of its proper divisors (8327415916).

11103221212 is a wasteful number, since it uses less digits than its factorization.

11103221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775805307 (or 2775805305 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11103221212 its reverse (21212230111), we get a palindrome (32315451323).

The spelling of 11103221212 in words is "eleven billion, one hundred three million, two hundred twenty-one thousand, two hundred twelve".