2002120012020 has 48 divisors (see below), whose sum is σ = 5629391873280. Its totient is φ = 531664780416.

The previous prime is 2002120011971. The next prime is 2002120012031. The reversal of 2002120012020 is 202100212002.

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 = 2002120011987 and 2002120012005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69794587 + ... + 69823266.

It is an arithmetic number, because the mean of its divisors is an integer number (117278997360).

Almost surely, 2^{2002120012020} is an apocalyptic number.

2002120012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002120012020 is an abundant number, since it is smaller than the sum of its proper divisors (3627271861260).

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

2002120012020 is a wasteful number, since it uses less digits than its factorization.

2002120012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139618104 (or 139618102 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2002120012020 its reverse (202100212002), we get a palindrome (2204220224022).

The spelling of 2002120012020 in words is "two trillion, two billion, one hundred twenty million, twelve thousand, twenty".