212333220220 has 96 divisors (see below), whose sum is σ = 525088811520. Its totient is φ = 71308258560.

The previous prime is 212333220193. The next prime is 212333220223. The reversal of 212333220220 is 22022333212.

212333220220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 212333220191 and 212333220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212333220223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576762 + ... + 870241.

It is an arithmetic number, because the mean of its divisors is an integer number (5469675120).

Almost surely, 2^212333220220 is an apocalyptic number.

212333220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212333220220 is an abundant number, since it is smaller than the sum of its proper divisors (312755591300).

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

212333220220 is a wasteful number, since it uses less digits than its factorization.

212333220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447075 (or 1447073 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 212333220220 its reverse (22022333212), we get a palindrome (234355553432).

The spelling of 212333220220 in words is "two hundred twelve billion, three hundred thirty-three million, two hundred twenty thousand, two hundred twenty".