2102000221220 has 48 divisors (see below), whose sum is σ = 4487638814400. Its totient is φ = 826818433920.

The previous prime is 2102000221201. The next prime is 2102000221231. The reversal of 2102000221220 is 221220002012.

It is a junction number, because it is equal to n+sod(n) for n = 2102000221195 and 2102000221204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4942991 + ... + 5351369.

It is an arithmetic number, because the mean of its divisors is an integer number (93492475300).

Almost surely, 2^{2102000221220} is an apocalyptic number.

2102000221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102000221220 is an abundant number, since it is smaller than the sum of its proper divisors (2385638593180).

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

2102000221220 is a wasteful number, since it uses less digits than its factorization.

2102000221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412668 (or 412666 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2102000221220 its reverse (221220002012), we get a palindrome (2323220223232).

The spelling of 2102000221220 in words is "two trillion, one hundred two billion, two hundred twenty-one thousand, two hundred twenty".