33122012 has 48 divisors (see below), whose sum is σ = 74618880. Its totient is φ = 12484800.

The previous prime is 33122009. The next prime is 33122021. The reversal of 33122012 is 21022133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7814 + ... + 11282.

It is an arithmetic number, because the mean of its divisors is an integer number (1554560).

Almost surely, 2^33122012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33122012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37309440).

33122012 is an abundant number, since it is smaller than the sum of its proper divisors (41496868).

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

33122012 is a wasteful number, since it uses less digits than its factorization.

33122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522 (or 3520 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 33122012 is about 5755.1726299043. The cubic root of 33122012 is about 321.1482575858.

Adding to 33122012 its reverse (21022133), we get a palindrome (54144145).

The spelling of 33122012 in words is "thirty-three million, one hundred twenty-two thousand, twelve".