212033230220 has 144 divisors (see below), whose sum is σ = 535099219200. Its totient is φ = 70296307200.

The previous prime is 212033230219. The next prime is 212033230229. The reversal of 212033230220 is 22032330212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212033230192 and 212033230201.

It is not an unprimeable number, because it can be changed into a prime (212033230229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59208830 + ... + 59212410.

It is an arithmetic number, because the mean of its divisors is an integer number (3715966800).

Almost surely, 2^212033230220 is an apocalyptic number.

212033230220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212033230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267549609600).

212033230220 is an abundant number, since it is smaller than the sum of its proper divisors (323065988980).

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

212033230220 is a wasteful number, since it uses less digits than its factorization.

212033230220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5584 (or 5575 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 212033230220 its reverse (22032330212), we get a palindrome (234065560432).

The spelling of 212033230220 in words is "two hundred twelve billion, thirty-three million, two hundred thirty thousand, two hundred twenty".