12220022222 has 16 divisors (see below), whose sum is σ = 19187351712. Its totient is φ = 5825915040.

The previous prime is 12220022203. The next prime is 12220022237. The reversal of 12220022222 is 22222002221.

It is a self number, because there is not a number n which added to its sum of digits gives 12220022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404429 + ... + 433592.

It is an arithmetic number, because the mean of its divisors is an integer number (1199209482).

Almost surely, 2^12220022222 is an apocalyptic number.

12220022222 is a deficient number, since it is larger than the sum of its proper divisors (6967329490).

12220022222 is a wasteful number, since it uses less digits than its factorization.

12220022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838363.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 12220022222 its reverse (22222002221), we get a palindrome (34442024443).

The spelling of 12220022222 in words is "twelve billion, two hundred twenty million, twenty-two thousand, two hundred twenty-two".