2002122101020 has 24 divisors (see below), whose sum is σ = 4204934398224. Its totient is φ = 800757795456.

The previous prime is 2002122101003. The next prime is 2002122101039. The reversal of 2002122101020 is 201012212002.

It is a happy number.

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, 5509849 + ... + 5861968.

It is an arithmetic number, because the mean of its divisors is an integer number (175205599926).

Almost surely, 2^{2002122101020} is an apocalyptic number.

2002122101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002122101020 is an abundant number, since it is smaller than the sum of its proper divisors (2202812297204).

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

2002122101020 is a wasteful number, since it uses less digits than its factorization.

2002122101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11380629 (or 11380627 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2002122101020 its reverse (201012212002), we get a palindrome (2203134313022).

The spelling of 2002122101020 in words is "two trillion, two billion, one hundred twenty-two million, one hundred one thousand, twenty".