2002000221100 has 72 divisors (see below), whose sum is σ = 4773874171248. Its totient is φ = 722686156800.

The previous prime is 2002000221097. The next prime is 2002000221103. The reversal of 2002000221100 is 11220002002.

It is an interprime number because it is at equal distance from previous prime (2002000221097) and next prime (2002000221103).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2002000221103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6491637 + ... + 6793036.

It is an arithmetic number, because the mean of its divisors is an integer number (66303807934).

Almost surely, 2^{2002000221100} is an apocalyptic number.

2002000221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002000221100 is an abundant number, since it is smaller than the sum of its proper divisors (2771873950148).

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

2002000221100 is a wasteful number, since it uses less digits than its factorization.

2002000221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284835 (or 13284828 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2002000221100 its reverse (11220002002), we get a palindrome (2013220223102).

The spelling of 2002000221100 in words is "two trillion, two billion, two hundred twenty-one thousand, one hundred".