33520240212 has 24 divisors (see below), whose sum is σ = 82814711616. Its totient is φ = 10516153728.

The previous prime is 33520240177. The next prime is 33520240217. The reversal of 33520240212 is 21204202533.

It is a super-2 number, since 2×33520240212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33520240217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82157248 + ... + 82157655.

It is an arithmetic number, because the mean of its divisors is an integer number (3450612984).

Almost surely, 2^33520240212 is an apocalyptic number.

It is an amenable number.

33520240212 is an abundant number, since it is smaller than the sum of its proper divisors (49294471404).

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

33520240212 is a wasteful number, since it uses less digits than its factorization.

33520240212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164314927 (or 164314925 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 33520240212 its reverse (21204202533), we get a palindrome (54724442745).

The spelling of 33520240212 in words is "thirty-three billion, five hundred twenty million, two hundred forty thousand, two hundred twelve".