33530250121212 has 96 divisors (see below), whose sum is σ = 87200509132800. Its totient is φ = 9958124643840.

The previous prime is 33530250121211. The next prime is 33530250121217. The reversal of 33530250121212 is 21212105203533.

It is a super-2 number, since 2×33530250121212² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33530250121212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33530250121211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7199337 + ... + 10903712.

It is an arithmetic number, because the mean of its divisors is an integer number (908338636800).

Almost surely, 2^{33530250121212} is an apocalyptic number.

It is an amenable number.

33530250121212 is an abundant number, since it is smaller than the sum of its proper divisors (53670259011588).

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

33530250121212 is a wasteful number, since it uses less digits than its factorization.

33530250121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18103483 (or 18103481 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 33530250121212 its reverse (21212105203533), we get a palindrome (54742355324745).

The spelling of 33530250121212 in words is "thirty-three trillion, five hundred thirty billion, two hundred fifty million, one hundred twenty-one thousand, two hundred twelve".