2002120011020 has 24 divisors (see below), whose sum is σ = 4205469484944. Its totient is φ = 800654202176.

The previous prime is 2002120011019. The next prime is 2002120011077. The reversal of 2002120011020 is 201100212002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2002120010992 and 2002120011010.

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, 12027914 + ... + 12193233.

It is an arithmetic number, because the mean of its divisors is an integer number (175227895206).

Almost surely, 2^{2002120011020} is an apocalyptic number.

2002120011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002120011020 is an abundant number, since it is smaller than the sum of its proper divisors (2203349473924).

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

2002120011020 is a wasteful number, since it uses less digits than its factorization.

2002120011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24225289 (or 24225287 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2002120011020 its reverse (201100212002), we get a palindrome (2203220223022).

The spelling of 2002120011020 in words is "two trillion, two billion, one hundred twenty million, eleven thousand, twenty".