1000320020220 has 48 divisors (see below), whose sum is σ = 2809731744288. Its totient is φ = 265910511360.

The previous prime is 1000320020213. The next prime is 1000320020237. The reversal of 1000320020220 is 220200230001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1000320020196 and 1000320020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26277511 + ... + 26315550.

It is an arithmetic number, because the mean of its divisors is an integer number (58536078006).

Almost surely, 2^{1000320020220} is an apocalyptic number.

1000320020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000320020220 is an abundant number, since it is smaller than the sum of its proper divisors (1809411724068).

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

1000320020220 is a wasteful number, since it uses less digits than its factorization.

1000320020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52593390 (or 52593388 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 1000320020220 its reverse (220200230001), we get a palindrome (1220520250221).

The spelling of 1000320020220 in words is "one trillion, three hundred twenty million, twenty thousand, two hundred twenty".