212159059812 has 480 divisors, whose sum is σ = 662491146240. Its totient is φ = 57963548160.

The previous prime is 212159059807. The next prime is 212159059813. The reversal of 212159059812 is 218950951212.

It is a happy number.

212159059812 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 59 + 0 + 598 + 1 + 2 = 666.

212159059812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212159059812² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212159059813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1301589243 + ... + 1301589405.

It is an arithmetic number, because the mean of its divisors is an integer number (1380189888).

Almost surely, 2^212159059812 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 212159059812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331245573120).

212159059812 is an abundant number, since it is smaller than the sum of its proper divisors (450332086428).

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

212159059812 is a wasteful number, since it uses less digits than its factorization.

212159059812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 212159059812 in words is "two hundred twelve billion, one hundred fifty-nine million, fifty-nine thousand, eight hundred twelve".