11211222212 has 24 divisors (see below), whose sum is σ = 20479857216. Its totient is φ = 5360005728.

The previous prime is 11211222181. The next prime is 11211222223. The reversal of 11211222212 is 21222211211.

11211222212 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 7 ways as a sum of consecutive naturals, for example, 262298 + ... + 302030.

It is an arithmetic number, because the mean of its divisors is an integer number (853327384).

Almost surely, 2^11211222212 is an apocalyptic number.

It is an amenable number.

11211222212 is a deficient number, since it is larger than the sum of its proper divisors (9268635004).

11211222212 is a wasteful number, since it uses less digits than its factorization.

11211222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42827 (or 42825 counting only the distinct ones).

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

Adding to 11211222212 its reverse (21222211211), we get a palindrome (32433433423).

The spelling of 11211222212 in words is "eleven billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twelve".