1222221100222 has 8 divisors (see below), whose sum is σ = 1851130987056. Its totient is φ = 605177437872.

The previous prime is 1222221100211. The next prime is 1222221100273. The reversal of 1222221100222 is 2220011222221.

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 1222221100222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2966555863 + ... + 2966556274.

It is an arithmetic number, because the mean of its divisors is an integer number (231391373382).

Almost surely, 2^{1222221100222} is an apocalyptic number.

1222221100222 is a deficient number, since it is larger than the sum of its proper divisors (628909886834).

1222221100222 is a wasteful number, since it uses less digits than its factorization.

1222221100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5933112242.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1222221100222 its reverse (2220011222221), we get a palindrome (3442232322443).

The spelling of 1222221100222 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, two hundred twenty-two".