11222213312 has 56 divisors (see below), whose sum is σ = 22824984576. Its totient is φ = 5471900928.

The previous prime is 11222213239. The next prime is 11222213329. The reversal of 11222213312 is 21331222211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844673 + ... + 857855.

Almost surely, 2^11222213312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11222213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11412492288).

11222213312 is an abundant number, since it is smaller than the sum of its proper divisors (11602771264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11222213312 is a wasteful number, since it uses less digits than its factorization.

11222213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525 (or 13515 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 11222213312 its reverse (21331222211), we get a palindrome (32553435523).

The spelling of 11222213312 in words is "eleven billion, two hundred twenty-two million, two hundred thirteen thousand, three hundred twelve".