10003220020 has 12 divisors (see below), whose sum is σ = 21006762084. Its totient is φ = 4001288000.

The previous prime is 10003219999. The next prime is 10003220039. The reversal of 10003220020 is 2002230001.

It can be written as a sum of positive squares in 2 ways, for example, as 1271065104 + 8732154916 = 35652^2 + 93446^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10003219979 and 10003220006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250080481 + ... + 250080520.

It is an arithmetic number, because the mean of its divisors is an integer number (1750563507).

Almost surely, 2^10003220020 is an apocalyptic number.

10003220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10003220020 is an abundant number, since it is smaller than the sum of its proper divisors (11003542064).

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

10003220020 is a wasteful number, since it uses less digits than its factorization.

10003220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500161010 (or 500161008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 10003220020 its reverse (2002230001), we get a palindrome (12005450021).

The spelling of 10003220020 in words is "ten billion, three million, two hundred twenty thousand, twenty".