1003221304220 has 12 divisors (see below), whose sum is σ = 2106764738904. Its totient is φ = 401288521680.

The previous prime is 1003221304219. The next prime is 1003221304307. The reversal of 1003221304220 is 224031223001.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 50161065211 = 1003221304220 / (1 + 0 + 0 + 3 + 2 + 2 + 1 + 3 + 0 + 4 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1003221304192 and 1003221304201.

It is a congruent number.

It is an unprimeable number.

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, 25080532586 + ... + 25080532625.

It is an arithmetic number, because the mean of its divisors is an integer number (175563728242).

Almost surely, 2^{1003221304220} is an apocalyptic number.

1003221304220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003221304220 is an abundant number, since it is smaller than the sum of its proper divisors (1103543434684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1003221304220 is a wasteful number, since it uses less digits than its factorization.

1003221304220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50161065220 (or 50161065218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1003221304220 its reverse (224031223001), we get a palindrome (1227252527221).

The spelling of 1003221304220 in words is "one trillion, three billion, two hundred twenty-one million, three hundred four thousand, two hundred twenty".