33002121222 has 96 divisors (see below), whose sum is σ = 85376332800. Its totient is φ = 9422024976.

The previous prime is 33002121203. The next prime is 33002121227. The reversal of 33002121222 is 22212120033.

33002121222 is a `hidden beast` number, since 330 + 0 + 212 + 122 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 33002121195 and 33002121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33002121227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4184679 + ... + 4192557.

It is an arithmetic number, because the mean of its divisors is an integer number (889336800).

Almost surely, 2^33002121222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33002121222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42688166400).

33002121222 is an abundant number, since it is smaller than the sum of its proper divisors (52374211578).

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

33002121222 is a wasteful number, since it uses less digits than its factorization.

33002121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487 (or 9474 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 33002121222 its reverse (22212120033), we get a palindrome (55214241255).

The spelling of 33002121222 in words is "thirty-three billion, two million, one hundred twenty-one thousand, two hundred twenty-two".