11221222003 has 4 divisors (see below), whose sum is σ = 11222679328. Its totient is φ = 11219764680.

The previous prime is 11221221961. The next prime is 11221222007. The reversal of 11221222003 is 30022212211.

It is a happy number.

11221222003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11221222003 - 2¹³ = 11221213811 is a prime.

It is a super-2 number, since 2×11221222003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221222007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717051 + ... + 732532.

It is an arithmetic number, because the mean of its divisors is an integer number (2805669832).

Almost surely, 2^11221222003 is an apocalyptic number.

11221222003 is a deficient number, since it is larger than the sum of its proper divisors (1457325).

11221222003 is an equidigital number, since it uses as much as digits as its factorization.

11221222003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457324.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11221222003 its reverse (30022212211), we get a palindrome (41243434214).

The spelling of 11221222003 in words is "eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, three".