2002122201020 has 12 divisors (see below), whose sum is σ = 4204456622184.
Its totient is φ = 800848880400.
The previous prime is 2002122200993. The next prime is 2002122201029. The reversal of 2002122201020 is 201022212002.
Adding to 2002122201020 its reverse (201022212002), we get a palindrome (2203144413022).
It is a junction number, because it is equal to n+sod(n) for n = 2002122200986 and 2002122201004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2002122201029) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50053055006 + ... + 50053055045.
It is an arithmetic number, because the mean of its divisors is an integer number (350371385182).
Almost surely, 22002122201020 is an apocalyptic number.
2002122201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2002122201020 is an abundant number, since it is smaller than the sum of its proper divisors (2202334421164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2002122201020 is a wasteful number, since it uses less digits than its factorization.
2002122201020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 100106110060 (or 100106110058 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 14.
The spelling of 2002122201020 in words is "two trillion, two billion, one hundred twenty-two million, two hundred one thousand, twenty".