1002221003 has 8 divisors (see below), whose sum is σ = 1156516608. Its totient is φ = 850705704.

The previous prime is 1002220991. The next prime is 1002221027. The reversal of 1002221003 is 3001222001.

It is a happy number.

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 1002221003 - 2¹⁰ = 1002219979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002221053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694301 + ... + 695742.

It is an arithmetic number, because the mean of its divisors is an integer number (144564576).

Almost surely, 2^1002221003 is an apocalyptic number.

1002221003 is a deficient number, since it is larger than the sum of its proper divisors (154295605).

1002221003 is a wasteful number, since it uses less digits than its factorization.

1002221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390153.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1002221003 is about 31657.8742653388. The cubic root of 1002221003 is about 1000.7397869137.

Adding to 1002221003 its reverse (3001222001), we get a palindrome (4003443004).

The spelling of 1002221003 in words is "one billion, two million, two hundred twenty-one thousand, three".