11212213222 has 24 divisors (see below), whose sum is σ = 19856182104. Its totient is φ = 4733511552.

The previous prime is 11212213163. The next prime is 11212213231. The reversal of 11212213222 is 22231221211.

It is a self number, because there is not a number n which added to its sum of digits gives 11212213222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 847243 + ... + 860374.

It is an arithmetic number, because the mean of its divisors is an integer number (827340921).

Almost surely, 2^11212213222 is an apocalyptic number.

11212213222 is a deficient number, since it is larger than the sum of its proper divisors (8643968882).

11212213222 is a wasteful number, since it uses less digits than its factorization.

11212213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707700 (or 1707693 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

Adding to 11212213222 its reverse (22231221211), we get a palindrome (33443434433).

The spelling of 11212213222 in words is "eleven billion, two hundred twelve million, two hundred thirteen thousand, two hundred twenty-two".