33561200012 has 24 divisors (see below), whose sum is σ = 65459928240. Its totient is φ = 14962268160.

The previous prime is 33561199967. The next prime is 33561200051. The reversal of 33561200012 is 21000216533.

It is a super-2 number, since 2×33561200012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12986789 + ... + 12989372.

It is an arithmetic number, because the mean of its divisors is an integer number (2727497010).

Almost surely, 2^33561200012 is an apocalyptic number.

It is an amenable number.

33561200012 is a deficient number, since it is larger than the sum of its proper divisors (31898728228).

33561200012 is a wasteful number, since it uses less digits than its factorization.

33561200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25976201 (or 25976199 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 33561200012 its reverse (21000216533), we get a palindrome (54561416545).

The spelling of 33561200012 in words is "thirty-three billion, five hundred sixty-one million, two hundred thousand, twelve".