212487784212 has 192 divisors, whose sum is σ = 569718374400. Its totient is φ = 61048944000.

The previous prime is 212487784207. The next prime is 212487784273.

212487784212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79911339 + ... + 79913997.

It is an arithmetic number, because the mean of its divisors is an integer number (2967283200).

Almost surely, 2^212487784212 is an apocalyptic number.

212487784212 is a gapful number since it is divisible by the number (22) 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 212487784212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284859187200).

212487784212 is an abundant number, since it is smaller than the sum of its proper divisors (357230590188).

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

212487784212 is a wasteful number, since it uses less digits than its factorization.

212487784212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 3096 counting only the distinct ones).

The product of its digits is 802816, while the sum is 48.

It can be divided in two parts, 212487 and 784212, that added together give a palindrome (996699).

The spelling of 212487784212 in words is "two hundred twelve billion, four hundred eighty-seven million, seven hundred eighty-four thousand, two hundred twelve".