12210322222 has 32 divisors (see below), whose sum is σ = 22744442880. Its totient is φ = 4797649440.

The previous prime is 12210322193. The next prime is 12210322291. The reversal of 12210322222 is 22222301221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12210322222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732133 + ... + 748624.

It is an arithmetic number, because the mean of its divisors is an integer number (710763840).

Almost surely, 2^12210322222 is an apocalyptic number.

12210322222 is a deficient number, since it is larger than the sum of its proper divisors (10534120658).

12210322222 is a wasteful number, since it uses less digits than its factorization.

12210322222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480816.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12210322222 its reverse (22222301221), we get a palindrome (34432623443).

The spelling of 12210322222 in words is "twelve billion, two hundred ten million, three hundred twenty-two thousand, two hundred twenty-two".