33123022212 has 24 divisors (see below), whose sum is σ = 88328059456. Its totient is φ = 9463720608.

The previous prime is 33123022147. The next prime is 33123022237. The reversal of 33123022212 is 21222032133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 197160763 + ... + 197160930.

Almost surely, 2^33123022212 is an apocalyptic number.

It is an amenable number.

33123022212 is an abundant number, since it is smaller than the sum of its proper divisors (55205037244).

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

33123022212 is a wasteful number, since it uses less digits than its factorization.

33123022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394321707 (or 394321705 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33123022212 its reverse (21222032133), we get a palindrome (54345054345).

The spelling of 33123022212 in words is "thirty-three billion, one hundred twenty-three million, twenty-two thousand, two hundred twelve".