222111111112 has 64 divisors (see below), whose sum is σ = 473617497600. Its totient is φ = 96735360000.

The previous prime is 222111111091. The next prime is 222111111119. The reversal of 222111111112 is 211111111222.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222111111119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127537 + ... + 678592.

It is an arithmetic number, because the mean of its divisors is an integer number (7400273400).

Almost surely, 2^222111111112 is an apocalyptic number.

222111111112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222111111112 is an abundant number, since it is smaller than the sum of its proper divisors (251506386488).

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

222111111112 is a wasteful number, since it uses less digits than its factorization.

222111111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806278 (or 806274 counting only the distinct ones).

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

Adding to 222111111112 its reverse (211111111222), we get a palindrome (433222222334).

It can be divided in two parts, 22 and 2111111112, that multiplied together give a palindrome (46444444464).

The spelling of 222111111112 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred eleven thousand, one hundred twelve".