12201122222 has 8 divisors (see below), whose sum is σ = 18302358672. Its totient is φ = 6100336000.

The previous prime is 12201122221. The next prime is 12201122231. The reversal of 12201122222 is 22222110221.

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 12201122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201122221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33779 + ... + 159822.

It is an arithmetic number, because the mean of its divisors is an integer number (2287794834).

Almost surely, 2^12201122222 is an apocalyptic number.

12201122222 is a deficient number, since it is larger than the sum of its proper divisors (6101236450).

12201122222 is a wasteful number, since it uses less digits than its factorization.

12201122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225114.

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

Adding to 12201122222 its reverse (22222110221), we get a palindrome (34423232443).

The spelling of 12201122222 in words is "twelve billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-two".