1222112220103 has 4 divisors (see below), whose sum is σ = 1250533434568. Its totient is φ = 1193691005640.

The previous prime is 1222112220083. The next prime is 1222112220139. The reversal of 1222112220103 is 3010222112221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222112220103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222112227103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14210607168 + ... + 14210607253.

It is an arithmetic number, because the mean of its divisors is an integer number (312633358642).

Almost surely, 2^{1222112220103} is an apocalyptic number.

1222112220103 is a deficient number, since it is larger than the sum of its proper divisors (28421214465).

1222112220103 is an equidigital number, since it uses as much as digits as its factorization.

1222112220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28421214464.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1222112220103 its reverse (3010222112221), we get a palindrome (4232334332324).

The spelling of 1222112220103 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred twenty thousand, one hundred three".