2001222333320 has 64 divisors (see below), whose sum is σ = 5146125091200. Its totient is φ = 686116730880.

The previous prime is 2001222333301. The next prime is 2001222333323. The reversal of 2001222333320 is 233332221002.

It is not an unprimeable number, because it can be changed into a prime (2001222333323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18869240 + ... + 18975000.

It is an arithmetic number, because the mean of its divisors is an integer number (80408204550).

Almost surely, 2^{2001222333320} is an apocalyptic number.

2001222333320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001222333320 is an abundant number, since it is smaller than the sum of its proper divisors (3144902757880).

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

2001222333320 is a wasteful number, since it uses less digits than its factorization.

2001222333320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173358 (or 173354 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 2001222333320 its reverse (233332221002), we get a palindrome (2234554554322).

The spelling of 2001222333320 in words is "two trillion, one billion, two hundred twenty-two million, three hundred thirty-three thousand, three hundred twenty".