12222011222 has 8 divisors (see below), whose sum is σ = 18337488672. Its totient is φ = 6109515000.

The previous prime is 12222011189. The next prime is 12222011267. The reversal of 12222011222 is 22211022221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12222011222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 735029 + ... + 751472.

It is an arithmetic number, because the mean of its divisors is an integer number (2292186084).

Almost surely, 2^12222011222 is an apocalyptic number.

12222011222 is a deficient number, since it is larger than the sum of its proper divisors (6115477450).

12222011222 is a wasteful number, since it uses less digits than its factorization.

12222011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490614.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12222011222 its reverse (22211022221), we get a palindrome (34433033443).

The spelling of 12222011222 in words is "twelve billion, two hundred twenty-two million, eleven thousand, two hundred twenty-two".