212030211330 has 168 divisors, whose sum is σ = 665644567932. Its totient is φ = 48463966656.

The previous prime is 212030211317. The next prime is 212030211391. The reversal of 212030211330 is 33112030212.

212030211330 is a `hidden beast` number, since 2 + 1 + 20 + 302 + 11 + 330 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 174938918049 + 37091293281 = 418257^2 + 192591^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 60424 + ... + 653996.

Almost surely, 2^212030211330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212030211330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332822283966).

212030211330 is an abundant number, since it is smaller than the sum of its proper divisors (453614356602).

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

212030211330 is an equidigital number, since it uses as much as digits as its factorization.

212030211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593612 (or 593590 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212030211330 its reverse (33112030212), we get a palindrome (245142241542).

The spelling of 212030211330 in words is "two hundred twelve billion, thirty million, two hundred eleven thousand, three hundred thirty".