11222211212 has 12 divisors (see below), whose sum is σ = 19875483096. Its totient is φ = 5543501760.

The previous prime is 11222211199. The next prime is 11222211239. The reversal of 11222211212 is 21211222211.

11222211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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 in 3 ways as a sum of consecutive naturals, for example, 16900589 + ... + 16901252.

It is an arithmetic number, because the mean of its divisors is an integer number (1656290258).

Almost surely, 2^11222211212 is an apocalyptic number.

It is an amenable number.

11222211212 is a deficient number, since it is larger than the sum of its proper divisors (8653271884).

11222211212 is a wasteful number, since it uses less digits than its factorization.

11222211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33801928 (or 33801926 counting only the distinct ones).

The product of its digits is 64, while the sum is 17.

Adding to 11222211212 its reverse (21211222211), we get a palindrome (32433433423).

The spelling of 11222211212 in words is "eleven billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twelve".