12222211100202 has 12 divisors (see below), whose sum is σ = 26481457383810. Its totient is φ = 4074070366728.

The previous prime is 12222211100149. The next prime is 12222211100291. The reversal of 12222211100202 is 20200111222221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12202383362481 + 19827737721 = 3493191^2 + 140811^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 679011727789 = 12222211100202 / (1 + 2 + 2 + 2 + 2 + 2 + 1 + 1 + 1 + 0 + 0 + 2 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339505863877 + ... + 339505863912.

Almost surely, 2^{12222211100202} is an apocalyptic number.

12222211100202 is an abundant number, since it is smaller than the sum of its proper divisors (14259246283608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222211100202 is a wasteful number, since it uses less digits than its factorization.

12222211100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679011727797 (or 679011727794 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12222211100202 its reverse (20200111222221), we get a palindrome (32422322322423).

The spelling of 12222211100202 in words is "twelve trillion, two hundred twenty-two billion, two hundred eleven million, one hundred thousand, two hundred two".