1001333333220 has 192 divisors, whose sum is σ = 3306615782400. Its totient is φ = 223755747840.

The previous prime is 1001333333219. The next prime is 1001333333279. The reversal of 1001333333220 is 223333331001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 615090 + ... + 1543049.

It is an arithmetic number, because the mean of its divisors is an integer number (17221957200).

Almost surely, 2^{1001333333220} is an apocalyptic number.

1001333333220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001333333220 is an abundant number, since it is smaller than the sum of its proper divisors (2305282449180).

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

1001333333220 is a wasteful number, since it uses less digits than its factorization.

1001333333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158218 (or 2158216 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 1001333333220 its reverse (223333331001), we get a palindrome (1224666664221).

The spelling of 1001333333220 in words is "one trillion, one billion, three hundred thirty-three million, three hundred thirty-three thousand, two hundred twenty".