2102102022220 has 48 divisors (see below), whose sum is σ = 4533036963840. Its totient is φ = 818384204736.

The previous prime is 2102102022199. The next prime is 2102102022221. The reversal of 2102102022220 is 222202012012.

It is a junction number, because it is equal to n+sod(n) for n = 2102102022194 and 2102102022203.

It is not an unprimeable number, because it can be changed into a prime (2102102022221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075180 + ... + 4561939.

It is an arithmetic number, because the mean of its divisors is an integer number (94438270080).

Almost surely, 2^{2102102022220} is an apocalyptic number.

2102102022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102102022220 is an abundant number, since it is smaller than the sum of its proper divisors (2430934941620).

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

2102102022220 is a wasteful number, since it uses less digits than its factorization.

2102102022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8637454 (or 8637452 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2102102022220 its reverse (222202012012), we get a palindrome (2324304034232).

The spelling of 2102102022220 in words is "two trillion, one hundred two billion, one hundred two million, twenty-two thousand, two hundred twenty".