1000220003 has 8 divisors (see below), whose sum is σ = 1013022000. Its totient is φ = 987452928.

The previous prime is 1000219999. The next prime is 1000220029. The reversal of 1000220003 is 3000220001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000220003 - 2² = 1000219999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000220093) 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 7 ways as a sum of consecutive naturals, for example, 51548 + ... + 68246.

It is an arithmetic number, because the mean of its divisors is an integer number (126627750).

Almost surely, 2^1000220003 is an apocalyptic number.

1000220003 is a deficient number, since it is larger than the sum of its proper divisors (12801997).

1000220003 is an equidigital number, since it uses as much as digits as its factorization.

1000220003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17461.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1000220003 is about 31626.2549632422. The cubic root of 1000220003 is about 1000.0733289561.

Adding to 1000220003 its reverse (3000220001), we get a palindrome (4000440004).

It can be divided in two parts, 10002 and 20003, that multiplied together give a triangular number (200070006 = T₂₀₀₀₃).

The spelling of 1000220003 in words is "one billion, two hundred twenty thousand, three".