212233332220 has 384 divisors, whose sum is σ = 615734784000. Its totient is φ = 59463548928.

The previous prime is 212233332187. The next prime is 212233332251. The reversal of 212233332220 is 22233332212.

212233332220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 87589929 + ... + 87592351.

It is an arithmetic number, because the mean of its divisors is an integer number (1603476000).

Almost surely, 2^212233332220 is an apocalyptic number.

212233332220 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 212233332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307867392000).

212233332220 is an abundant number, since it is smaller than the sum of its proper divisors (403501451780).

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

212233332220 is a wasteful number, since it uses less digits than its factorization.

212233332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637 (or 2635 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 212233332220 its reverse (22233332212), we get a palindrome (234466664432).

The spelling of 212233332220 in words is "two hundred twelve billion, two hundred thirty-three million, three hundred thirty-two thousand, two hundred twenty".