1003223221 has 48 divisors (see below), whose sum is σ = 1367452800. Its totient is φ = 716158080.

The previous prime is 1003223201. The next prime is 1003223267. The reversal of 1003223221 is 1223223001.

It is not a de Polignac number, because 1003223221 - 2¹⁷ = 1003092149 is a prime.

It is a super-2 number, since 2×1003223221² = 2012913662307229682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1003223195 and 1003223204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003223201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1970715 + ... + 1971223.

It is an arithmetic number, because the mean of its divisors is an integer number (28488600).

Almost surely, 2^1003223221 is an apocalyptic number.

1003223221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1003223221 is a deficient number, since it is larger than the sum of its proper divisors (364229579).

1003223221 is a wasteful number, since it uses less digits than its factorization.

1003223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1003223221 is about 31673.6991998093. The cubic root of 1003223221 is about 1001.0732547122.

Adding to 1003223221 its reverse (1223223001), we get a palindrome (2226446222).

The spelling of 1003223221 in words is "one billion, three million, two hundred twenty-three thousand, two hundred twenty-one".