1222111003 has 4 divisors (see below), whose sum is σ = 1275246288. Its totient is φ = 1168975720.

The previous prime is 1222110997. The next prime is 1222111019. The reversal of 1222111003 is 3001112221.

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 1222111003 - 2¹³ = 1222102811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222111043) 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, 26567608 + ... + 26567653.

It is an arithmetic number, because the mean of its divisors is an integer number (318811572).

Almost surely, 2^1222111003 is an apocalyptic number.

1222111003 is a deficient number, since it is larger than the sum of its proper divisors (53135285).

1222111003 is an equidigital number, since it uses as much as digits as its factorization.

1222111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53135284.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1222111003 is about 34958.7042523032. The cubic root of 1222111003 is about 1069.1456781536.

Adding to 1222111003 its reverse (3001112221), we get a palindrome (4223223224).

It can be divided in two parts, 1222 and 111003, that added together give a square (112225 = 335²).

The spelling of 1222111003 in words is "one billion, two hundred twenty-two million, one hundred eleven thousand, three".