520201212 has 48 divisors (see below), whose sum is σ = 1283976960. Its totient is φ = 163582848.

The previous prime is 520201211. The next prime is 520201223. The reversal of 520201212 is 212102025.

It is a junction number, because it is equal to n+sod(n) for n = 520201191 and 520201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520201211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7239 + ... + 33057.

It is an arithmetic number, because the mean of its divisors is an integer number (26749520).

Almost surely, 2^520201212 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 520201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641988480).

520201212 is an abundant number, since it is smaller than the sum of its proper divisors (763775748).

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

520201212 is a wasteful number, since it uses less digits than its factorization.

520201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25922 (or 25920 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 520201212 is about 22807.9199402313. The cubic root of 520201212 is about 804.2488586338.

Adding to 520201212 its reverse (212102025), we get a palindrome (732303237).

The spelling of 520201212 in words is "five hundred twenty million, two hundred one thousand, two hundred twelve".