1222111102222 has 16 divisors (see below), whose sum is σ = 2025391290912. Its totient is φ = 550106275840.

The previous prime is 1222111102181. The next prime is 1222111102229. The reversal of 1222111102222 is 2222011112221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222111102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222111102229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781400179 + ... + 781401742.

It is an arithmetic number, because the mean of its divisors is an integer number (126586955682).

Almost surely, 2^{1222111102222} is an apocalyptic number.

1222111102222 is a deficient number, since it is larger than the sum of its proper divisors (803280188690).

1222111102222 is a wasteful number, since it uses less digits than its factorization.

1222111102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562801963.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222111102222 its reverse (2222011112221), we get a palindrome (3444122214443).

Subtracting 1222111102222 from its reverse (2222011112221), we obtain a palindrome (999900009999).

The spelling of 1222111102222 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one hundred two thousand, two hundred twenty-two".