12211222198 has 16 divisors (see below), whose sum is σ = 20937473280. Its totient is φ = 5232393576.

The previous prime is 12211222189. The next prime is 12211222211. The reversal of 12211222198 is 89122211221.

It is a super-2 number, since 2×12211222198² (a number of 21 digits) contains 22 as substring.

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, 2778 + ... + 156301.

It is an arithmetic number, because the mean of its divisors is an integer number (1308592080).

Almost surely, 2^12211222198 is an apocalyptic number.

12211222198 is a deficient number, since it is larger than the sum of its proper divisors (8726251082).

12211222198 is a wasteful number, since it uses less digits than its factorization.

12211222198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164571.

The product of its digits is 2304, while the sum is 31.

The spelling of 12211222198 in words is "twelve billion, two hundred eleven million, two hundred twenty-two thousand, one hundred ninety-eight".