33021220122 has 24 divisors (see below), whose sum is σ = 78050157120. Its totient is φ = 10006430280.

The previous prime is 33021220109. The next prime is 33021220163. The reversal of 33021220122 is 22102212033.

33021220122 is a `hidden beast` number, since 330 + 212 + 2 + 0 + 122 = 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 = 33021220095 and 33021220104.

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 11 ways as a sum of consecutive naturals, for example, 83386722 + ... + 83387117.

It is an arithmetic number, because the mean of its divisors is an integer number (3252089880).

Almost surely, 2^33021220122 is an apocalyptic number.

33021220122 is an abundant number, since it is smaller than the sum of its proper divisors (45028936998).

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

33021220122 is a wasteful number, since it uses less digits than its factorization.

33021220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166773858 (or 166773855 counting only the distinct ones).

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

Adding to 33021220122 its reverse (22102212033), we get a palindrome (55123432155).

The spelling of 33021220122 in words is "thirty-three billion, twenty-one million, two hundred twenty thousand, one hundred twenty-two".