33021111012 has 12 divisors (see below), whose sum is σ = 77049259056. Its totient is φ = 11007037000.

The previous prime is 33021110957. The next prime is 33021111023. The reversal of 33021111012 is 21011112033.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 33021110982 and 33021111000.

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 3 ways as a sum of consecutive naturals, for example, 1375879614 + ... + 1375879637.

It is an arithmetic number, because the mean of its divisors is an integer number (6420771588).

Almost surely, 2^33021111012 is an apocalyptic number.

It is an amenable number.

33021111012 is an abundant number, since it is smaller than the sum of its proper divisors (44028148044).

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

33021111012 is a wasteful number, since it uses less digits than its factorization.

33021111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751759258 (or 2751759256 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 33021111012 its reverse (21011112033), we get a palindrome (54032223045).

The spelling of 33021111012 in words is "thirty-three billion, twenty-one million, one hundred eleven thousand, twelve".