11220011212 has 12 divisors (see below), whose sum is σ = 19638228456. Its totient is φ = 5609088800.

The previous prime is 11220011191. The next prime is 11220011249. The reversal of 11220011212 is 21211002211.

It is a junction number, because it is equal to n+sod(n) for n = 11220011192 and 11220011201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201289 + ... + 250912.

It is an arithmetic number, because the mean of its divisors is an integer number (1636519038).

Almost surely, 2^11220011212 is an apocalyptic number.

It is an amenable number.

11220011212 is a deficient number, since it is larger than the sum of its proper divisors (8418217244).

11220011212 is a wasteful number, since it uses less digits than its factorization.

11220011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458408 (or 458406 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11220011212 its reverse (21211002211), we get a palindrome (32431013423).

Subtracting 11220011212 from its reverse (21211002211), we obtain a palindrome (9990990999).

The spelling of 11220011212 in words is "eleven billion, two hundred twenty million, eleven thousand, two hundred twelve".