222011222112 has 96 divisors (see below), whose sum is σ = 653944203360. Its totient is φ = 73271001600.

The previous prime is 222011222089. The next prime is 222011222117. The reversal of 222011222112 is 211222110222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011222117) by changing a digit.

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, 1184803 + ... + 1359330.

It is an arithmetic number, because the mean of its divisors is an integer number (6811918785).

Almost surely, 2^222011222112 is an apocalyptic number.

It is an amenable number.

222011222112 is an abundant number, since it is smaller than the sum of its proper divisors (431932981248).

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

222011222112 is a wasteful number, since it uses less digits than its factorization.

222011222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544253 (or 2544239 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222011222112 its reverse (211222110222), we get a palindrome (433233332334).

The spelling of 222011222112 in words is "two hundred twenty-two billion, eleven million, two hundred twenty-two thousand, one hundred twelve".