22211112112 has 80 divisors (see below), whose sum is σ = 50735141632. Its totient is φ = 9223061760.

The previous prime is 22211112067. The next prime is 22211112149. The reversal of 22211112112 is 21121111222.

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.

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 15 ways as a sum of consecutive naturals, for example, 433483 + ... + 482005.

Almost surely, 2^22211112112 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 22211112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25367570816).

22211112112 is an abundant number, since it is smaller than the sum of its proper divisors (28524029520).

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

22211112112 is a wasteful number, since it uses less digits than its factorization.

22211112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48666 (or 48660 counting only the distinct ones).

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

Adding to 22211112112 its reverse (21121111222), we get a palindrome (43332223334).

The spelling of 22211112112 in words is "twenty-two billion, two hundred eleven million, one hundred twelve thousand, one hundred twelve".