212035520 has 56 divisors (see below), whose sum is σ = 509625600. Its totient is φ = 84022272.

The previous prime is 212035519. The next prime is 212035529. The reversal of 212035520 is 25530212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212035492 and 212035501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212035529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31841 + ... + 37919.

Almost surely, 2^212035520 is an apocalyptic number.

212035520 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 212035520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254812800).

212035520 is an abundant number, since it is smaller than the sum of its proper divisors (297590080).

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

212035520 is a wasteful number, since it uses less digits than its factorization.

212035520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205 (or 6195 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 212035520 is about 14561.4394892813. The cubic root of 212035520 is about 596.3064952102.

Adding to 212035520 its reverse (25530212), we get a palindrome (237565732).

The spelling of 212035520 in words is "two hundred twelve million, thirty-five thousand, five hundred twenty".