2100202302220 has 72 divisors (see below), whose sum is σ = 4853483867232. Its totient is φ = 762818031360.

The previous prime is 2100202302203. The next prime is 2100202302221. The reversal of 2100202302220 is 222032020012.

It is a junction number, because it is equal to n+sod(n) for n = 2100202302194 and 2100202302203.

It is not an unprimeable number, because it can be changed into a prime (2100202302221) 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, 1567609 + ... + 2580271.

It is an arithmetic number, because the mean of its divisors is an integer number (67409498156).

Almost surely, 2^{2100202302220} is an apocalyptic number.

2100202302220 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 2100202302220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2426741933616).

2100202302220 is an abundant number, since it is smaller than the sum of its proper divisors (2753281565012).

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

2100202302220 is a wasteful number, since it uses less digits than its factorization.

2100202302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013551 (or 1013538 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 2100202302220 its reverse (222032020012), we get a palindrome (2322234322232).

The spelling of 2100202302220 in words is "two trillion, one hundred billion, two hundred two million, three hundred two thousand, two hundred twenty".