33122120021 has 16 divisors (see below), whose sum is σ = 34579548864. Its totient is φ = 31697725824.

The previous prime is 33122119957. The next prime is 33122120029. The reversal of 33122120021 is 12002122133.

It is a cyclic number.

It is not a de Polignac number, because 33122120021 - 2⁶ = 33122119957 is a prime.

It is a super-3 number, since 3×33122120021³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33122120029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673361 + ... + 720873.

It is an arithmetic number, because the mean of its divisors is an integer number (2161221804).

Almost surely, 2^33122120021 is an apocalyptic number.

It is an amenable number.

33122120021 is a deficient number, since it is larger than the sum of its proper divisors (1457428843).

33122120021 is a wasteful number, since it uses less digits than its factorization.

33122120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47860.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33122120021 its reverse (12002122133), we get a palindrome (45124242154).

The spelling of 33122120021 in words is "thirty-three billion, one hundred twenty-two million, one hundred twenty thousand, twenty-one".