2102311000220 has 24 divisors (see below), whose sum is σ = 4647213790800. Its totient is φ = 796665220992.

The previous prime is 2102311000217. The next prime is 2102311000291. The reversal of 2102311000220 is 220001132012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2102311000195 and 2102311000204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2766198305 + ... + 2766199064.

It is an arithmetic number, because the mean of its divisors is an integer number (193633907950).

Almost surely, 2^{2102311000220} is an apocalyptic number.

2102311000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102311000220 is an abundant number, since it is smaller than the sum of its proper divisors (2544902790580).

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

2102311000220 is a wasteful number, since it uses less digits than its factorization.

2102311000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532397397 (or 5532397395 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2102311000220 its reverse (220001132012), we get a palindrome (2322312132232).

The spelling of 2102311000220 in words is "two trillion, one hundred two billion, three hundred eleven million, two hundred twenty", and thus it is an aban number.