212206569216 has 144 divisors (see below), whose sum is σ = 591654604800. Its totient is φ = 67431297024.

The previous prime is 212206569203. The next prime is 212206569217. The reversal of 212206569216 is 612965602212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212206569217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699185 + ... + 1819791.

Almost surely, 2^212206569216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212206569216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295827302400).

212206569216 is an abundant number, since it is smaller than the sum of its proper divisors (379448035584).

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

212206569216 is a wasteful number, since it uses less digits than its factorization.

212206569216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120734 (or 120720 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 212206569216 in words is "two hundred twelve billion, two hundred six million, five hundred sixty-nine thousand, two hundred sixteen".