33311111212 has 12 divisors (see below), whose sum is σ = 58343813136. Its totient is φ = 16641450320.

The previous prime is 33311111173. The next prime is 33311111221. The reversal of 33311111212 is 21211111333.

It is a super-2 number, since 2×33311111212² (a number of 22 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 33311111212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3521008 + ... + 3530455.

It is an arithmetic number, because the mean of its divisors is an integer number (4861984428).

Almost surely, 2^33311111212 is an apocalyptic number.

It is an amenable number.

33311111212 is a deficient number, since it is larger than the sum of its proper divisors (25032701924).

33311111212 is a wasteful number, since it uses less digits than its factorization.

33311111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052648 (or 7052646 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

Adding to 33311111212 its reverse (21211111333), we get a palindrome (54522222545).

The spelling of 33311111212 in words is "thirty-three billion, three hundred eleven million, one hundred eleven thousand, two hundred twelve".