1116221220503 has 4 divisors (see below), whose sum is σ = 1118042136648. Its totient is φ = 1114400304360.

The previous prime is 1116221220467. The next prime is 1116221220551. The reversal of 1116221220503 is 3050221226111.

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

It is a cyclic number.

It is not a de Polignac number, because 1116221220503 - 2⁴⁰ = 16709592727 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 (1116221220203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910457153 + ... + 910458378.

It is an arithmetic number, because the mean of its divisors is an integer number (279510534162).

Almost surely, 2^{1116221220503} is an apocalyptic number.

1116221220503 is a deficient number, since it is larger than the sum of its proper divisors (1820916145).

1116221220503 is an equidigital number, since it uses as much as digits as its factorization.

1116221220503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820916144.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1116221220503 its reverse (3050221226111), we get a palindrome (4166442446614).

The spelling of 1116221220503 in words is "one trillion, one hundred sixteen billion, two hundred twenty-one million, two hundred twenty thousand, five hundred three".