11221122112 has 28 divisors (see below), whose sum is σ = 22365035280. Its totient is φ = 5585837696.

The previous prime is 11221122103. The next prime is 11221122191. The reversal of 11221122112 is 21122112211.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

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, 371662 + ... + 400717.

It is an arithmetic number, because the mean of its divisors is an integer number (798751260).

Almost surely, 2^11221122112 is an apocalyptic number.

It is an amenable number.

11221122112 is a deficient number, since it is larger than the sum of its proper divisors (11143913168).

11221122112 is an equidigital number, since it uses as much as digits as its factorization.

11221122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772618 (or 772608 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

Adding to 11221122112 its reverse (21122112211), we get a palindrome (32343234323).

Subtracting 11221122112 from its reverse (21122112211), we obtain a palindrome (9900990099).

It can be divided in two parts, 1122112211 and 2, that multiplied together give a palindrome (2244224422).

The spelling of 11221122112 in words is "eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred twelve".