2002122020020 has 24 divisors (see below), whose sum is σ = 4210192229544. Its totient is φ = 799756238976.

The previous prime is 2002122019973. The next prime is 2002122020047. The reversal of 2002122020020 is 200202212002.

It can be written as a sum of positive squares in 4 ways, for example, as 1281596069776 + 720525950244 = 1132076^2 + 848838^2 .

It is a congruent number.

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, 68270539 + ... + 68299858.

It is an arithmetic number, because the mean of its divisors is an integer number (175424676231).

Almost surely, 2^{2002122020020} is an apocalyptic number.

2002122020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002122020020 is an abundant number, since it is smaller than the sum of its proper divisors (2208070209524).

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

2002122020020 is a wasteful number, since it uses less digits than its factorization.

2002122020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136571139 (or 136571137 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2002122020020 its reverse (200202212002), we get a palindrome (2202324232022).

The spelling of 2002122020020 in words is "two trillion, two billion, one hundred twenty-two million, twenty thousand, twenty".