212230210220 has 36 divisors (see below), whose sum is σ = 518448087360. Its totient is φ = 72764643168.

The previous prime is 212230210201. The next prime is 212230210237. The reversal of 212230210220 is 22012032212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108279740 + ... + 108281699.

It is an arithmetic number, because the mean of its divisors is an integer number (14401335760).

Almost surely, 2^212230210220 is an apocalyptic number.

212230210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212230210220 is an abundant number, since it is smaller than the sum of its proper divisors (306217877140).

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

212230210220 is a wasteful number, since it uses less digits than its factorization.

212230210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216561462 (or 216561453 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212230210220 its reverse (22012032212), we get a palindrome (234242242432).

The spelling of 212230210220 in words is "two hundred twelve billion, two hundred thirty million, two hundred ten thousand, two hundred twenty".