212555202720 has 288 divisors, whose sum is σ = 791636582016. Its totient is φ = 47787264000.

The previous prime is 212555202703. The next prime is 212555202763. The reversal of 212555202720 is 27202555212.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1360645 + ... + 1508795.

It is an arithmetic number, because the mean of its divisors is an integer number (2748738132).

Almost surely, 2^212555202720 is an apocalyptic number.

212555202720 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 212555202720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395818291008).

212555202720 is an abundant number, since it is smaller than the sum of its proper divisors (579081379296).

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

212555202720 is a wasteful number, since it uses less digits than its factorization.

212555202720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148244 (or 148229 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

Adding to 212555202720 its reverse (27202555212), we get a palindrome (239757757932).

The spelling of 212555202720 in words is "two hundred twelve billion, five hundred fifty-five million, two hundred two thousand, seven hundred twenty".