2002001202020 has 24 divisors (see below), whose sum is σ = 4234890139704. Its totient is φ = 794955220736.

The previous prime is 2002001202011. The next prime is 2002001202031. The reversal of 2002001202020 is 202021002002.

It can be written as a sum of positive squares in 4 ways, for example, as 59679558436 + 1942321643584 = 244294^2 + 1393672^2 .

It is a super-3 number, since 3×2002001202020³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2002001201992 and 2002001202010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365325947 + ... + 365331426.

It is an arithmetic number, because the mean of its divisors is an integer number (176453755821).

Almost surely, 2^{2002001202020} is an apocalyptic number.

2002001202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002001202020 is an abundant number, since it is smaller than the sum of its proper divisors (2232888937684).

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

2002001202020 is a wasteful number, since it uses less digits than its factorization.

2002001202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730657519 (or 730657517 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 2002001202020 its reverse (202021002002), we get a palindrome (2204022204022).

The spelling of 2002001202020 in words is "two trillion, two billion, one million, two hundred two thousand, twenty".