212201330220 has 72 divisors (see below), whose sum is σ = 702193499280. Its totient is φ = 51442746240.

The previous prime is 212201330207. The next prime is 212201330317. The reversal of 212201330220 is 22033102212.

212201330220 is a `hidden beast` number, since 212 + 201 + 3 + 30 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212201330193 and 212201330202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53584215 + ... + 53588174.

It is an arithmetic number, because the mean of its divisors is an integer number (9752687490).

Almost surely, 2^212201330220 is an apocalyptic number.

212201330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201330220 is an abundant number, since it is smaller than the sum of its proper divisors (489992169060).

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

212201330220 is a wasteful number, since it uses less digits than its factorization.

212201330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107172415 (or 107172410 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212201330220 its reverse (22033102212), we get a palindrome (234234432432).

The spelling of 212201330220 in words is "two hundred twelve billion, two hundred one million, three hundred thirty thousand, two hundred twenty".