2002001111220 has 192 divisors, whose sum is σ = 6160004847360. Its totient is φ = 481787596800.

The previous prime is 2002001111183. The next prime is 2002001111221. The reversal of 2002001111220 is 221111002002.

It is a super-2 number, since 2×2002001111220² (a number of 25 digits) contains 22 as substring.

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 = 2002001111196 and 2002001111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002001111221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67958014 + ... + 67987466.

It is an arithmetic number, because the mean of its divisors is an integer number (32083358580).

Almost surely, 2^{2002001111220} is an apocalyptic number.

2002001111220 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 2002001111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3080002423680).

2002001111220 is an abundant number, since it is smaller than the sum of its proper divisors (4158003736140).

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

2002001111220 is a wasteful number, since it uses less digits than its factorization.

2002001111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30226 (or 30224 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2002001111220 its reverse (221111002002), we get a palindrome (2223112113222).

The spelling of 2002001111220 in words is "two trillion, two billion, one million, one hundred eleven thousand, two hundred twenty".