1003000221020 has 24 divisors (see below), whose sum is σ = 2407200530784. Its totient is φ = 343885790016.

The previous prime is 1003000220941. The next prime is 1003000221029. The reversal of 1003000221020 is 201220003001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1003000220992 and 1003000221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003000221029) 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, 3582143507 + ... + 3582143786.

It is an arithmetic number, because the mean of its divisors is an integer number (100300022116).

Almost surely, 2^{1003000221020} is an apocalyptic number.

1003000221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003000221020 is an abundant number, since it is smaller than the sum of its proper divisors (1404200309764).

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

1003000221020 is a wasteful number, since it uses less digits than its factorization.

1003000221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7164287309 (or 7164287307 counting only the distinct ones).

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

Adding to 1003000221020 its reverse (201220003001), we get a palindrome (1204220224021).

The spelling of 1003000221020 in words is "one trillion, three billion, two hundred twenty-one thousand, twenty".