2002021222200 has 96 divisors (see below), whose sum is σ = 6210083362560. Its totient is φ = 533543932800.

The previous prime is 2002021222193. The next prime is 2002021222237. The reversal of 2002021222200 is 22221202002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2002021222200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49216 + ... + 2001615.

It is an arithmetic number, because the mean of its divisors is an integer number (64688368360).

Almost surely, 2^{2002021222200} is an apocalyptic number.

2002021222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2002021222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3105041681280).

2002021222200 is an abundant number, since it is smaller than the sum of its proper divisors (4208062140360).

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

2002021222200 is a wasteful number, since it uses less digits than its factorization.

2002021222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052477 (or 2052468 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2002021222200 its reverse (22221202002), we get a palindrome (2024242424202).

The spelling of 2002021222200 in words is "two trillion, two billion, twenty-one million, two hundred twenty-two thousand, two hundred".