2102210022220 has 48 divisors (see below), whose sum is σ = 5503968062208. Its totient is φ = 655234292160.

The previous prime is 2102210022191. The next prime is 2102210022259. The reversal of 2102210022220 is 222200122012.

It is a junction number, because it is equal to n+sod(n) for n = 2102210022194 and 2102210022203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682534182 + ... + 682537261.

It is an arithmetic number, because the mean of its divisors is an integer number (114666001296).

Almost surely, 2^{2102210022220} is an apocalyptic number.

2102210022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102210022220 is an abundant number, since it is smaller than the sum of its proper divisors (3401758039988).

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

2102210022220 is a wasteful number, since it uses less digits than its factorization.

2102210022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365071470 (or 1365071468 counting only the distinct ones).

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

Adding to 2102210022220 its reverse (222200122012), we get a palindrome (2324410144232).

The spelling of 2102210022220 in words is "two trillion, one hundred two billion, two hundred ten million, twenty-two thousand, two hundred twenty".