2001202333020 has 576 divisors, whose sum is σ = 7148827445760. Its totient is φ = 447910041600.

The previous prime is 2001202332989. The next prime is 2001202333027. The reversal of 2001202333020 is 203332021002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2001202332984 and 2001202333002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001202333027) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 901035510 + ... + 901037730.

It is an arithmetic number, because the mean of its divisors is an integer number (12411158760).

Almost surely, 2^{2001202333020} is an apocalyptic number.

2001202333020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001202333020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3574413722880).

2001202333020 is an abundant number, since it is smaller than the sum of its proper divisors (5147625112740).

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

2001202333020 is a wasteful number, since it uses less digits than its factorization.

2001202333020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866 (or 2861 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 2001202333020 its reverse (203332021002), we get a palindrome (2204534354022).

The spelling of 2001202333020 in words is "two trillion, one billion, two hundred two million, three hundred thirty-three thousand, twenty".