212110210220 has 48 divisors (see below), whose sum is σ = 461142158400. Its totient is φ = 81856024320.

The previous prime is 212110210199. The next prime is 212110210223. The reversal of 212110210220 is 22012011212.

It is a junction number, because it is equal to n+sod(n) for n = 212110210195 and 212110210204.

It is not an unprimeable number, because it can be changed into a prime (212110210223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626390 + ... + 903650.

It is an arithmetic number, because the mean of its divisors is an integer number (9607128300).

Almost surely, 2^212110210220 is an apocalyptic number.

212110210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110210220 is an abundant number, since it is smaller than the sum of its proper divisors (249031948180).

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

212110210220 is a wasteful number, since it uses less digits than its factorization.

212110210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278618 (or 278616 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212110210220 its reverse (22012011212), we get a palindrome (234122221432).

The spelling of 212110210220 in words is "two hundred twelve billion, one hundred ten million, two hundred ten thousand, two hundred twenty".