2001333222120 has 128 divisors (see below), whose sum is σ = 6348342067200. Its totient is φ = 503332579584.

The previous prime is 2001333222089. The next prime is 2001333222149. The reversal of 2001333222120 is 212223331002.

It is a happy number.

It is a super-2 number, since 2×2001333222120² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1459672 + ... + 2476551.

It is an arithmetic number, because the mean of its divisors is an integer number (49596422400).

Almost surely, 2^{2001333222120} is an apocalyptic number.

2001333222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001333222120 is an abundant number, since it is smaller than the sum of its proper divisors (4347008845080).

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

2001333222120 is a wasteful number, since it uses less digits than its factorization.

2001333222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936479 (or 3936475 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2001333222120 its reverse (212223331002), we get a palindrome (2213556553122).

The spelling of 2001333222120 in words is "two trillion, one billion, three hundred thirty-three million, two hundred twenty-two thousand, one hundred twenty".